Welcome to the Beryllium-Associated Worker Registry (BAWR) Dashboard, developed by the Oak Ridge Institute for Science and Education (ORISE)

BAWR project team, under a contract with the U.S. Department of Energy (DOE).  The BAWR program began in Calendar Year 2002 (CY2002), and since its inception has tracked, monitored, and analyzed data on workers exposed to beryllium and produced annual reports and summary data tables for more than 30 active and inactive DOE sites throughout the United States.  The first Registry publication reported data for 12,267 workers through CY2005.  In CY2025, the Registry has grown to more than 71,000 workers (including those at inactive reporting organizations such as Rocky Flats and some retrospective data provided prior to the CY2002 start date of the Registry).

In 2018 the BAWR program transitioned from presenting data in a paper-based annual report to an interactive digital format, or a Dashboard, as a means of providing an improved user experience with this tool.  This transition from paper to digital format is intended to allow for interaction with and visualization of data contained in the Registry. This Dashboard for CY2025 is the continued presentation of the BAWR data on an annual basis.   

Enhancements to facilitate the user experience include topical sections and tabs, navigation features such as hover points with data details, and other helpful functions that allow users to quickly examine information.  Users are able to explore the standard metrics and results of data analyses

for the BAWR through an interrelated series of graphics and tables to provide a comprehensive overview of Registry demographics, health monitoring, and exposure activities.

Some helpful hints for the best experience as you explore the Dashboard:

  • To interact with the data explorer, hover over any of the graphics on the screen and click on your selection for more information.
  • Once the selected graphic is open, roll the cursor over data to enable a pop-up screen with more detailed information.
  • When you have completed your review of the graphic, please click on the ‘x’ button located in the upper right-hand corner of the graphic.
  • More information is provided in the Help section of the Dashboard.
  • A PDF of the Dashboard is available for download, located at the bottom of the navigation bar on the left.

If you have any comments, questions, or suggestions concerning this tool, please contact Kali Crosby, DOE EH-12 Office of Health Studies and Former Worker Program, at Kali.Crosby@hq.doe.gov or the BAWR support team at BAWR@orau.org.

DOE Mission & BAWR Initiative

DOE Mission

Introduction

The U.S. Department of Energy (DOE) is responsible for protecting the health and safety of DOE workers, contractors, and subcontractors.  The Office of Environment, Health, Safety and Security (EHSS) provides the federal-level leadership and strategic vision necessary to establish clear expectations for health, safety, environment, and security programs.  In support of this mission, the Office of Health Programs & Environmental Radiation Protection (EH-10) collects, analyzes, and disseminates data and performance indicators, such as beryllium health and exposure information for individuals potentially at risk for chronic beryllium disease due to their work at DOE facilities.

The Beryllium-Associated Worker Registry (BAWR) is a complex-wide program established to help DOE conduct and improve its Chronic Beryllium Disease Prevention Program (CBDPP), which aims to protect workers from the adverse health effects of exposure to beryllium.  The U.S. Code of Federal Regulations (CFR) Title 10, part 850 Chronic Beryllium Disease Prevention Program (10 CFR 850) requires DOE sites to inventory and assess beryllium exposure hazards and transmit all records generated as required by this rule to DOE.  Established in Calendar Year 2002 (CY2002), the BAWR is the repository for these data and contains information from more than 30 DOE facility reporting organizations, both active and inactive.  

Background

The Department of Energy and Department of Defense (DOD) have historically been some of the largest users of beryllium.  Since the early 1940s, many thousands of workers at DOE and DOD plants or facilities have worked with beryllium and had the potential for exposure.  These U.S. Departments have also been among the most involved in the study of beryllium and its possible health effects, and DOE took steps to initiate a comprehensive beryllium worker health program.  Following years of aggressive data collection and analysis of beryllium activities, exposure measurements, and disease occurrence, a public notice of intent to establish a chronic beryllium disease prevention program was published in 1998 (63 FR 66940). Within the notice of intent, DOE requested comments, data, and any other relevant information from the public and industry for consideration in developing the beryllium worker health program.  Following receipt and consideration of numerous comments and other relevant information, DOE published the final rule of 10 CFR part 850 "Chronic Beryllium Disease Prevention Program” in 1999.  DOE issued a comprehensive implementation guide (DOE G 440.1-7) to assist line managers in meeting responsibilities required by the CBDPP in CY1997 and updated it in CY2001 (DOE G 440.1-7a). In CY2006, DOE published 10 CFR 851, a final rule establishing and implementing a formal worker safety and health program (WSHP) which also included some updating of the CBDPP.  The WSHP, including the amendments to the CBDPP Rule, went into effect in CY2007.

BAWR Initiative

The U.S. Department of Energy (DOE) Beryllium-Associated Worker Registry (BAWR) was established to meet the requirements of 10 CFR 850 enacted in December 1999 and has been in operation since Calendar Year 2002 (CY2002).  It is a collection of health and exposure information of individuals potentially at risk for chronic beryllium disease (CBD) due to their work at DOE-owned or leased facilities.

The DOE Office of Health Studies and Former Worker Programs supports the operation of a surveillance registry of current workers who are exposed to beryllium in their current job or may have been exposed to beryllium in the past from work conducted at a DOE site.  Data reported electronically to the BAWR are analyzed and summarized to help DOE accomplish several goals.  The primary goal is to monitor and evaluate the effectiveness of DOE's Chronic Beryllium Disease Prevention Program.  The data are analyzed to help better understand the factors and conditions leading to CBD and to identify those at risk.  Additionally, the Registry provides data that can be analyzed to help answer questions posed by DOE Headquarters (and other agencies) regarding, for example, to determine the incidence and prevalence of beryllium sensitization and CBD, and the effects of lowering established personal exposure limits.

Regulations, Standards, and Specifications

Code of Federal Regulations 10 Part 850

Title 10, Code of Federal Regulations, part 850 (10 CFR 850), "Chronic Beryllium Disease Prevention Program," requires U.S. Department of Energy (DOE) sites to inventory and assess beryllium exposure hazards to determine whether workers are at risk for chronic beryllium disease (CBD).  Sites that determine workers are at risk due to ongoing or past work must implement CBD prevention programs that include reporting health and exposure data to the DOE Beryllium-Associated Worker Registry (BAWR).  Health data are collected through the operation of medical surveillance programs for current workers.  Exposure data is gathered as part of industrial hygiene activities conducted at sites where beryllium operations are ongoing.

Standards and Specifications

Beryllium-Associated Worker Registry Data Collection and Management Guidance, DOE-STD-1187-2019 is a technical standard that provides methods for complying with the requirements of Title 10 Code of Federal Regulations, Part 850.39 (10 CFR 850.39) “Recordkeeping and Use of Information.” It should be used by responsible employers subject to the requirements of 10 CFR 850 “Chronic Beryllium Disease Prevention Program” to guide their submission of information to the DOE BAWR.  Use of this standard promotes consistent reporting and efficient analysis and dissemination of information to those who need to know.

Executive Summary

Summary of Findings, 2025

The Beryllium-Associated Worker Registry (BAWR) 2025 Dashboard provides a summary of cumulative data collected by the U.S. Department of Energy (DOE)-affiliated reporting organizations through the end of the Calendar Year 2025 (CY2025).  The Oak Ridge Institute for Science and Education (ORISE) Data Center in collaboration with DOE’s Office of Health Programs & Environmental Radiation Protection (EH-10) developed the analyses and statistics presented within this report.  The report provides an overview of Registry demographics and health monitoring and exposure activities, highlighting changes since the last reporting period.

  • The Registry includes 30 active reporting organizations during the CY2025 reporting period.  There were three changes in reporting organizations for CY2025. Two new contractors associated with Pacific Northwest National Laboratory (PNNL), PNNL Apollo Mechanical Contractors and PNNL DGR Grant Construction, began reporting to BAWR. Golden SVCS, LLC (GSVCS) also began reporting as Simmons & Golden, LLC (S&G).
  • There were 7 changes in data coordinators in CY2025. There were no organizations that had more than one data coordinator change during the calendar year.
  • The Registry includes 58,563 workers among the active reporting sites.
  • The majority of the workers in the Registry are males over 50 years of age (52% of workers).  The number of workers increased by 1,779 (3%) (from 56,784 workers in CY2024 to 58,563 workers in CY2025).

  • Medical surveillance programs at the reporting organizations screened a total of 8,633 workers for beryllium sensitization (BeS) (nearly 20%) in CY2025.  Of those workers, 1,723 workers were newly reported to the Registry.
  • The Registry contains 561 BeS workers and 157 workers diagnosed with chronic beryllium disease (CBD). The Registry reported 5 new BeS cases and 1 new CBD case in CY2025. The newly reported BeS cases were from 5 reporting organizations (1 HAN, 1 LANL, 1 LANL N3B, 1 ETTP, and 1 SRS). The new CBD case was identified at Y-12.
  • A significant number of BeS workers and CBD cases in the Registry are associated with two sites, which also represent the largest beryllium operations in the program.
    • 26% of BeS workers are associated with Y-12 and 22% of BeS workers are associated with Hanford.
    • 40% of CBD cases are associated with Y-12 and 22% of CBD cases are associated with Hanford.
  • The majority of BeS workers and CBD cases are associated with work histories involving crafts workers and line operators.
    • Crafts work histories are associated with 108 (19%) BeS workers. Line operators account for an additional 93 (17%) BeS workers.
    • Crafts work histories are associated with 38 (24%) CBD cases. Line operators account for 23 (15%) CBD cases.

  • The Registry received data for 2,449 air monitoring samples for the locations where 754 workers were present in CY2025.
  • Of the samples measured in CY2025, 97.1% had non-detectable results.  Less than 1% of the samples exceeded the 8-hour time weighted average (TWA) action level of 0.2 µg/m3.  Across all years, Y-12 and LANL report the largest number of samples exceeding the action level with 80% of the reported exceedances.
  • The highest 8-hour TWA level measured during CY2025 was 0.2 µg/m3 at Hanford.  This was lower than the highest reported measurement in CY2024 which was 16.370 µg/m3 at Y-12.

  • Site medical programs screen a greater proportion of workers for beryllium sensitization (BeS) than are monitored for exposure to airborne beryllium. This may be due to medical surveillance requirements for workers no longer performing beryllium-related work; workers moving between sites/contractors; the discovery of legacy beryllium in poorly documented areas; and the use of swipe sampling results, not required for the Registry.
  • Among exposure monitoring results submitted to the Registry, 32% of workers (182 of 561) were reported as BeS and 51% of workers (80 of 157) reported as having CBD exposure monitoring results submitted to the Registry.

Significant Findings

The U.S. Department of Energy (DOE) Chronic Beryllium Disease Prevention Program (CBDPP) and Beryllium-Associated Worker Registry (BAWR) have played a vital role in raising awareness of beryllium health and safety. The BAWR continues to be a valuable component of DOE's occupational health strategy.

The BAWR 2025 Dashboard provides a summary of data collected by DOE-affiliated reporting organizations through the end of the Calendar Year 2025 (CY2025).

During CY2025, important findings from the BAWR include:

  • The yearly average for workers developing sensitization, whose first abnormal Beryllium Lymphocyte Proliferation Test (BeLPT) results were reported between CY2001 and CY2010, was 35. The current ten-year average (2016–2025) has dropped to 6.3 sensitizations per year.  For workers later diagnosed with CBD, the yearly averages dropped from 9 to less than 1 per year for the respective time frames.
  • Over 4 times as many workers are screened for BeS (using BeLPT) compared to the number of workers who are monitored for exposure to airborne beryllium.
  • While health monitoring for BeS appears vigorous, industrial hygiene programs have historically submitted fewer exposure sampling measurements to the BAWR each year.  However, in CY2024, the number of exposure sample results was the highest number reported in over 10 years. In CY2025, the number of sample results was fewer than CY2024 but still remained higher compared to the last 5 years (see the “DOE-wide Trend in Reported Exposure Sampling for 2016–2025” graph in the Exposure Monitoring Activities tab of the Data Metrics and Results section).

Accomplishments

The BAWR accomplishments to date highlight the importance and contributions made by this program in partnership with the DOE CBDPP.

  • The results of the BAWR data analyses indicate that the percent of exposure samples that exceed the 0.2 µg/m3 personnel exposure limit have remained low, averaging 0.1% in CY2025.
  • Between CY2001 and CY2010, an average of 35 workers per year developed sensitization. Between CY2016 and CY2025, this rate dropped to an average of 7 workers per year.  For workers later diagnosed with CBD, the average number of workers developing CBD during the respective 10-year time frame dropped from 9 workers a year to less than 1 worker per year.  The CBDPP and the BAWR have played a vital role in raising awareness. The BAWR continues to be a valuable component of DOE's occupational health strategy.
  • The data in the BAWR have been used by both the DOE Office of Inspector General and by the reporting organizations to investigate the effectiveness of sites’ beryllium protection and prevention programs or follow-up to assure that recommendations from audits have been implemented.  The BAWR has also provided special analyses for individual reporting organizations to help with quality assurance of their data and to prepare for internal or external audits.  This cumulative data resource has proven to be more comprehensive and accurate than individual sites’ records, as well as designed to provide easy comparisons between the health and exposure information.

  • Data from the BAWR were included in the Federal Register on 7 June 2016, in support of proposed amendments to 10 CFR 850.  These proposed changes to the rule, reflecting DOE goals to achieve aggressive reduction and minimization of worker exposures to airborne beryllium, will further strengthen the current CBDPP, worker protection programs, and reporting of affected workers.  As part of the justification for lowering DOE established personal exposure limits (PELs), BAWR data was analyzed to determine the effects of the current cutoff of 2.0 µg/m3 and played a critical role in lowering it to several levels between 1.0 and 0.33 µg/m3.
  • Data from the BAWR were also used by DOE staff working on updates to the rule to monitor reporting organizations by geographic location and account for reporting organizations (and changes in numbers of workers), which had been combined when contracts were rebid and/or organization names had changed.

  • Results from BAWR analyses to study the effects of lowering DOE established personal exposure limits (PELs) were shared by DOE with the Occupational Safety and Health Administration (OSHA).  The BAWR is the only source for these cumulative data for DOE-affiliated sites/organizations.
  • Raw exposure data from the BAWR were requested and used by OSHA in evaluating lowering their permissible exposure limit (PEL) to 0.2 µg/m3. ORISE staff created and provided a de-identified file for OSHA with a limited number of fields to protect workers’ identities.

  • Because of the regular and required electronic reporting of data to the BAWR, the BAWR has been used as justification by the reporting organizations for streamlining their processes by developing new systems, infrastructure, and/or procuring new software.  Over time, data have improved dramatically, as evidenced by decreasing error rates in the data condition reports.  There is a continued effort made by BAWR and DOE staff to improve data quality, notably securing complete worker rosters and work history data.
  • DOE and ORISE staff worked together to help ensure the BAWR’s Technical Standard is specifically cited as the guidance and elements required to satisfy mandatory reporting in current updates to 10 CFR 850.  This effort will support sites with submitting more complete and accurate reporting data and hopefully reduce the need for correcting errors.  As a result, the BAWR will be an even more robust resource to better understand the relationship between beryllium exposure and disease outcomes, in order to protect worker health.

Limitations to Data Interpretation

Due to limitations associated with data submitted to the Beryllium-Associated Worker Registry (BAWR), caution should be exercised in the conclusions drawn from data analyses results and data summarizations.  Caveats to consider when interpreting the data presented in the BAWR Dashboard are discussed below:

The Registry does not contain PII (personally identifiable information) on workers.  Each reporting organization is free to choose its own encryption algorithm to assign a unique identifier for a given worker.  While this approach ensures the protection of the individual’s privacy, it restricts the Registry’s ability to determine when a given worker moves from one reporting organization to another.

In general, reporting of air monitoring samples has declined each year.  Due to beryllium sensitization (BeS) and chronic beryllium disease (CBD) observed in workers without exposure monitoring data, reporting organizations may need to review and update exposure sampling plans.  In contrast, health monitoring for BeS appears to be robust, although additional medical follow-up of CBD cases would be useful.

Morbidity and mortality data are not reported by sites to the BAWR.  However, the Registry does capture health outcome information on workers’ development of beryllium sensitization (BeS) or chronic beryllium disease (CBD).  The clinical criteria and incidence rules for the case definition of BeS is one of the following:

  • Individual must have 2 abnormal blood tests, or
  • 1 abnormal and 2 borderline blood tests, or
  • An abnormal bronchoalveolar lavage BeLPT (Beryllium Lymphocyte Proliferation Test), or
  • Clinical evaluation with a diagnosis of BeS.

The current diagnostic algorithm used in the identification of cases is limited because of the time lapse between meeting any one of the above criteria to a time when the worker may already be experiencing health effects.  When 10 CFR 850 is updated and published, revisions to the current algorithm for determining BeS will result in earlier dates of BeS for many workers, providing more timely identification and subsequent medical follow-up or appropriate work restrictions.

  • Cause of death is not available to the Registry, which prevents further analyses focused on estimation of mortality risk from particular causes.

Reporting organizations are not required to submit data on the total number of workers for each reporting year.  Additionally, it is difficult to ensure that each reporting organization has submitted a complete roster of workers with potential beryllium exposure due to current or past work locations or activities.  The number of workers tested using the beryllium lymphocyte proliferation test, therefore, is the denominator in many of the analyses and calculated rates of beryllium sensitization or chronic beryllium disease.

The Registry cannot always confirm the date of first hire because some organizations define the date of first hire as the date of first hire by the current (sub)contractor, and this date overwrites the previous date of first hire by a former contractor.  Resetting this date negatively impacts the Beryllium-Associated Worker Registry analyses to examine latency from possible exposure to development of sensitization to disease onset.

Although most workers represented in the figures and tables are unique cases, there is potential duplication of workers and counts.  This issue can arise when a worker moves from one reporting organization to another and is assigned a new identifier based on a different encryption algorithm.  Although the number of workers in this category is believed to be small, given the absence of personally identified information on individuals, we cannot be absolutely certain that the total numbers of individuals shown in figures and tables represent unique individuals.  We have used this approach to err on the site of protecting the workers’ privacy.

Significant delays in reporting impact the Beryllium-Associated Worker Registry (BAWR) analyses and conclusions drawn from them.  Such delays also impact the ability to identify problems and defer refinement of protocols.

Timely and complete reporting of exposure monitoring data is necessary to characterize beryllium-related work at a site and analyze workers’ actual exposure levels and time weighted averages.  Timely and complete reporting of beryllium sensitization (BeS) and chronic beryllium disease (CBD) cases (and their related work history) is critical to identifying problems, assessing the effectiveness of CBD Prevention Programs, and refining protocols.

In recent years, reporting organizations observed BeS among security guards, administrative personnel, and field engineers.  These workers had no expected exposure, are not covered in sites’ industrial hygiene sampling plans, and did not use personal protective equipment.  These cases highlight the importance of proactive hazard assessments and sampling approaches.  Timely reporting of data is critical to earlier identification of potential work areas or sources of beryllium exposure, particularly locations or work activities not anticipated to be significant sources of beryllium exposure.

There are reasons contributing to delayed reporting of data:

  • Turnover in data coordinators often results in the need for additional training and subsequent delays in data submissions.  Therefore, significant data coordinator turnover can impact the timely acquisition of data and subsequent reporting of results.
  • Exposure monitoring records for previous monitoring years are sometimes received late.  This results in a delay in data collection and an impact on data analysis.  For example, of the 4,837 exposure records submitted to BAWR during the Calendar Year 2025 (CY2025), 2,286 (47%) had monitoring dates for prior years.  Some of these records for prior monitoring years include higher-than-average exposure levels which can significantly impact trend analysis.  As the number of annual exposure records has decreased in recent years, the impact of these records on BAWR analyses has increased.

There have been delays in reporting of BeS and CBD cases, most often for those cases where workers did not hold beryllium-related jobs.  Therefore, several years elapsed before beryllium was identified as a factor.  As a result, workers were enrolled in medical surveillance programs, or were referred to a pulmonary laboratory, for further testing and evaluation.

Significant delays in reporting impact the BAWR analyses and the conclusions drawn from them. Data submitted with missing required values (such as first hire on site date, 8-hour time weighted average, actual exposure level, first beryllium job start date, or job title) also limit BAWR analyses and make it difficult to identify potential problem areas or those warranting further investigation.

Due to BeS and CBD observed in workers without exposure monitoring data (i.e., over two-thirds of total cases), sites may need to review and update exposure sampling plans to be more proactive identifying cases. For example, recent cases include workers whose jobs had no expected risk for exposure. For BeS and CBD cases that do have exposure sampling reported, the amount of data prior to their diagnosis date (i.e., having data for monitoring conducted earlier than their date of sensitization or CBD diagnosis) is very limited.

Analyses of the data from the BAWR yielded no statistical correlation between the incidence of BeS/CBD and the percent of exceedances among exposure sampling results submitted to the Registry. The lack of correlation could be due to sensitization and CBD cases associated with past work locations or conditions rather than the environment currently monitored. However, it is also possible that the exposure monitoring programs are missing sources of exposure.

Data Metrics & Results

BAWR Reporting Sites and Target Population

Beryllium-Associated Worker Registry (BAWR) includes Reporting Organizations associated with the U.S. Department of Energy (DOE)-operated facilities. It includes DOE contractor and federal workers who:

  • Have been exposed, or have had the potential for exposure, to airborne concentrations of beryllium due to their work at the present or a previous DOE site;
  • Self-identify and indicate a history of possible exposure; or
  • Exhibit symptoms of beryllium exposure or are receiving medical removal protection benefits.

The site’s Chronic Beryllium Disease Prevention Program (CBDPP) may also include other workers in the BAWR reporting for their site, as appropriate.  Subcontractors who are not included under the main site’s CBDPP must have their own CBDPP and report data separately.  The 10 CFR 850 contains further information on beryllium and beryllium-associated workers, and which organizations should have CBDPPs.

Through the 2025 calendar year, the BAWR received data from the following 30 DOE-affiliated reporting organizations:

  • Ames National Laboratory (Ames Lab)
  • Argonne National Laboratory (ANL)
  • Brookhaven National Laboratory (BNL)
  • DOE Oak Ridge Office (DOE-ORO)
  • East Tennessee Technology Park (ETTP)
  • Fermi National Accelerator Laboratory (Fermi)
  • Hanford Site (HAN)
  • Idaho National Laboratory (INL)
  • Kansas City National Security Campus (KCNSC)
  • Knolls Atomic Power Laboratory (KAPL)
  • Lawrence Berkeley National Laboratory (LBNL)
  • Lawrence Livermore National Laboratory (LLNL)
  • LLNL Clean Harbors Environmental Services (LLNL CHES)
  • LLNL North Wind (LLNL NW)
  • Los Alamos National Laboratory (LANL)
  • LANL N3B (LANL N3B)
  • Nevada National Security Site (NNSS)
  • Oak Ridge National Laboratory (ORNL)
  • Pacific Northwest National Laboratory (PNNL)
  • PNNL DGR Grand Construction (PNNL DGR)
  • PNNL Apollo Mechanical Contractors (PNNL AMC)
  • Paducah Site (PADUCAH)
  • Pantex Plant (PTX)
  • Portsmouth Gaseous Diffusion Plant (PORTS)
  • Sandia National Laboratories (SNL)
  • Savannah River Site (SRS)
  • Simmons and Golden Security, LLC (S&G)
  • SLAC National Accelerator Laboratory (SLAC)
  • Y-12 Atkins Nuclear Secured (Y-12 ANS)
  • Y-12 National Security Complex (Y‑12)

All but one of the 30 active reporting organizations collected health data through the operation of their medical surveillance programs.

Twenty-five (25) organizations conducted exposure sampling through their industrial hygiene programs.  Sixteen of these organizations reported exposure sampling in CY2025. Simmons and Golden Security, LLC (S&G) and do not submit exposure sampling data since their workers are in the BAWR due to prior work at another DOE site and have no potential for exposure.

There are 9 reporting organizations that previously participated in the program, but due to contract changes or work completion, no longer submit data.  The previously submitted data from these organizations, referred to as inactive reporting organizations, remain in the BAWR. Years in parentheses are the years the organization actively reported to BAWR.

The inactive reporting organizations are:

  • Advanced Mixed Waste Treatment Project (AMWTP) (2005-2016)
  • LLNL Boston University (LLNL BU) (2008-2009)
  • LLNL Envirocon, Inc. (LLNL ENVC) (2010-2012)
  • National Strategic Protective Services, LLC for ETTP and ORNL (NSPS) (2008-2018)
  • Rocky Flats Closure Project (RF) (1984-2005)
  • Southwestern Power Administration (SWPA) (2002)
  • Wackenhut Security Services, Inc. for ETTP, ORNL, and Y-12 (WSI) (2002-2012)
  • Y-12 Navarro Research and Engineering (Y-12 NRE) (2007-2014)
  • Y-12 URS Corporation (Y-12 URS) (2008-2014)

  • Geographical Locations for 30 Active BAWR Reporting Organizations (2025)

    Geographical Locations for 30 Active BAWR Reporting Organizations (2025) infographic

    Click here for List of Acronyms

    This map shows the geographical locations of the 30 DOE-affiliated actively reporting organizations. 

    Ames National Laboratory (Ames Lab)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    63 63 2 0 12
    Argonne National Laboratory (ANL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    439 207 3 0 23
    Brookhaven National Laboratory (BNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    86 57 1 0 51
    Fermi National Accelerator Laboratory (Fermi)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    29 21 0 0 23
    Richland Area Reporting Locations
    Hanford Site (HAN)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    26,814 16,409 125 34 2,738
    Pacific Northwest National Laboratory (PNNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    571 517 10 0 70
    PNNL DGR Grand Construction (PNNL DGR)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    3 3 0 0 3
    PNNL Apollo Mechanical Contractors (PNNL AMC)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    6 6 0 0 6
    Idaho National Laboratory (INL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    1,589 546 3 0 430
    Knolls Atomic Power Laboratory (KAPL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    87 45 0 0 39
    Los Alamos Area Reporting Locations
    Los Alamos National Laboratory (LANL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    6,953 5,450 39 8 1,085
    LANL N3B Project (LANL N3B)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    299 244 1 0 23
    Lawrence Berkeley National Laboratory (LBNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    39 26 2 0 8
    Livermore Area Reporting Locations
    Lawrence Livermore National Laboratory (LLNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    3,264 2,132 73 4 343
    LLNL Clean Harbors Environmental Services (LLNL CHES)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    49 37 0 0 1
    LLNL North Wind (LLNL NW)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    65 55 0 0 1
    Kansas City National Security Campus (KCNSC)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    1,457 1,338 41 14 206
    Nevada National Security Site (NNSS)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    1,538 1,393 23 6 329
    Oak Ridge Area Reporting Locations
    DOE Oak Ridge Office (DOE-ORO)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    109 108 1 0 2
    Simmons and Golden Security, LLC (S&G)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    7 6 1 0 0
    East Tennessee Technology Park (ETTP)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    1,824 1,555 7 4 693
    Oak Ridge National Laboratory (ORNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    1,493 1,521 21 0 350
    Y-12 National Security Complex (Y-12)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    5,381 4,689 146 63 1,963
    Y-12 Atkins Nuclear Secured (Y-12 ANS)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    65 64 0 0 33
    Paducah Site (PADUCAH)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    383 308 6 0 104
    Pantex Plant (PTX)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    2,825 2,314 27 15 690
    Portsmouth Gaseous Diffusion Plant (PORTS)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    15 13 4 0 2
    Sandia National Laboratories (SNL)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    718 690 1 1 183
    Savannah River Site (SRS)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    2,294 1,284 24 7 222
    SLAC National Accelerator Laboratory (SLAC)
    Number of Workers:
    Roster BeLPT Tested Be Sensitized CBD Exposure Monitored
    99 57 0 1 26

  • Data Coordinator Changes by Reporting Organization (2018-2025)

    Each reporting organization designates a data coordinator who is responsible for coordinating activities at the site related to data collection, timely submittal of data, and responding to inquiries from the U.S. Department of Energy (DOE) Program Manager and the Oak Ridge Institute for Science and Education Data Center as outlined in the DOE technical standard, DOE-STD-1187-2019.  The following table shows that there were 7 data coordinator changes in Calendar Year 2025.

    Year No. (%) of Reporting Organizations Total Data Coordinator Changes Organizations with ≥2 Data Coordinator Changes in Same Year
    2016 6 (22%) 7 1
    2017 5 (19%) 7 2
    2018 7 (27%) 9 2
    2019 11 (41%) 12 0
    2020 4 (15%) 5 1
    2021 11 (41%) 12 1
    2022 2 (7%) 2 0
    2023 5 (19%) 7 2
    2024 5 (17%) 6 1
    2025 7 (24%) 7 0

    Changes in data coordinators often result in the need for additional training and subsequent delays in data submissions.  Therefore, significant data coordinator turnover can impact the timely acquisition of data and subsequent reporting of results.

  • Workers reported to the BAWR by Reporting Organization (2002-2025) *

    Workers reported to the BAWR by Reporting Organization (2002-2025) * infographic

    This figure shows the cumulative numbers of beryllium-associated workers reported to the Beryllium-Associated Worker Registry (BAWR) by reporting organization.  Through Calendar Year 2025 (CY2025), there were 56,563 workers in the cumulative roster as compared to 56,779 workers in the cumulative roster through CY2024, for an increase of 1,784 workers.  Hanford Site has 26,814 workers in the roster, constituting the largest number in the cumulative active roster.

    *Some reporting organizations have provided data that predate the 2002 start date of the Registry.

  • Gender and Age Distribution for Workers (2002-2025) *

    Gender and Age Distribution for Workers (2002-2025) * infographic

    Workers are predominantly male (approximately 81%) and greater than 50 years old (52%). This chart excludes 258 workers (< 0.1%) for whom demographic data were not available.    

    *Some reporting organizations have provided data that predate the 2002 start date of the Registry.

Health Monitoring Results

Sites’ health clinics collect medical surveillance data on workers identified by their beryllium rosters.  These data sets contain beryllium-related health monitoring information and the results of any specialized medical testing.  The Site Occupational Medical Director determines the content and frequency of surveillance evaluations and tests based on policies, standards, and the worker’s health and work history.  The most vital information collected and reported on an annual basis are the number of workers monitored for beryllium sensitization (BeS) using the beryllium lymphocyte proliferation test (BeLPT), the number of new BeS cases identified, and the number of new cases of chronic beryllium disease (CBD).

Some workers in the roster may decline testing for sensitization.  As a result, no records will be available for individuals who refuse this diagnostic evaluation.  Some workers may have testing done independently (for example, as part of a former worker program), and in these cases results may be unavailable for Registry reporting unless the worker releases their evaluation report, and it becomes part of the organization’s electronic medical records.  Also, advanced medical testing results when workers are referred (after findings suggestive of possible CBD) to a pulmonary medicine or other specialized clinic for follow-up diagnosis and care may not be reported and/or can be difficult to collect.

Sensitization and CBD Screening

The cumulative number of workers with BeLPT screening results submitted to the Beryllium-Associated Worker Registry (BAWR) through Calendar Year 2025 (CY2025) was 41,158.  This corresponds to an additional 926 workers tested when compared with the 40,232 workers screened through CY2024. 

There was a total of 561 sensitized workers (including 5 new sensitized workers) included in the BAWR, and medical staff diagnosed 157 workers as having CBD through CY2025.  BeS and CBD are mutually exclusive categories, (i.e., if a person who is BeS receives a CBD diagnosis, the person’s diagnosis moves to the CBD category and is no longer counted in the BeS category).

  • Number and Proportion of Workers undergoing BeLPT Testing and Diagnosed with BeS or Diagnosed with CBD by Reporting Organization (n=41,158) (2002–2025) *
    Reporting Organization No. Workers with BeLPT Results No. Sensitized Workers No. Workers with CBD
    HAN 16,409 125 (0.8%) 34 (0.2%)
    LANL 5,450 39 (0.7%) 8 (0.1%)
    Y-12 4,689 146 (3.1%) 63 (1.3%)
    PTX 2,314 27 (1.2%) 15 (0.6%)
    LLNL 2,132 73 (1.4%) 4 (0%)
    ETTP 1,555 7 (1.7%) 4 (0.4%)
    ORNL 1,521 21 (0.5%) 0 (0.3%)
    NNSS 1,393 23 (3.1%) 6 (1%)
    KCNSC 1,338 41 (1.9%) 14 (0.5%)
    SRS** 1,284 24 (3.4%) 7 (0.2%)
    SNL 690 1 (0.1%) 1 (0.1%)
    INL 546 3 (0.5%) 0 (0.0%)
    PNNL 517 10 (1.9%) 0 (0.0%)
    PADUCAH 308 6 (1.9%) 0 (0.0%)
    LANL N3B 244 1 (0.4%) 0 (0.0%)
    ANL 207 3 (1.4%) 0 (0.0%)
    DOE-ORO 108 1 (0.9%) 0 (0.0%)
    Y-12 ANS 64 0 (0%) 0 (0.0%)
    Ames Lab 63 2 (3.2%) 0 (0.0%)
    BNL 57 1 (1.8%) 0 (0.0%)
    SLAC 57 0 (0.0%) 1 (1.8%)
    LLNL NW 55 0 (0.0%) 0 (0.0%)
    KAPL 45 0 (0.0%) 0 (0.0%)
    LLNL CHES 37 0 (0.0%) 0 (0.0%)
    LBNL 26 2 (7.7%) 0 (0.0%)
    Fermi 21 0 (0.0%) 0 (0.0%)
    PORTS 13 4 (30.8%) 0 (0.0%)
    S&G 6 1 (16.7%) 0 (0.0%)
    PNNL AMC 6 0 (0.0%) 0 (0.0%)
    PNNL DGR 3 0 (0.0%) 0 (0.0%)
    Totals 41,158 561 (1.1%) 157 (0.3%)

    Click here for List of Acronyms

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

    **The new CBD case for CY2025 was at NNSA site.

    This table provides the numbers of beryllium-associated workers with Beryllium Lymphocyte Proliferation Testing (BeLPT) test results submitted to the Beryllium-Associated Worker Registry each year. The total number of beryllium-sensitized (BeS) workers increased by 5 through Calendar Year 2025 (CY2025) (561 total BeS cases reported).  The newly reported BeS cases were from 5 reporting organizations (1 HAN, 1 LANL, 1 LANL N3B, 1 ETTP,  and 1 SRS).

    Twenty-one (21) of the active reporting organizations have BeS workers and 11 have workers who have been diagnosed with chronic beryllium disease (CBD).

  • Number and Percent Proportion of Workers Undergoing BeLPT Testing, and Yielding Abnormal BeS or CBD Results (n=58,563) (2002–2025) *
    Number and Percent Proportion of Workers Undergoing BeLPT Testing, and Yielding Abnormal BeS or CBD Results (n=58,563) (2002–2025) * infographic

    This figure depicts the numbers and percentages across the U.S. Department of Energy (DOE) complex of workers screened using the BeLPT and among those workers having abnormal results, how many are sensitized or have developed CBD.  Comparison with previous years’ reports show that these DOE-wide percentage distributions have remained consistent.

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

  • Percent Proportion of Workers Diagnosed as BeS by Reporting Organization (n=561) (2002–2025) *
    Percent Proportion of Workers Diagnosed as BeS by Reporting Organization (n=561) (2002–2025) * infographic

    This figure presents the distribution in percent of beryllium sensitization (BeS) cases by reporting organization.  Of the 15 reporting organizations with at least 1 reported Be sensitization, about 48.3% of total BeS cases are associated with the Y-12 and HAN sites, which also represent the largest beryllium operations in the program.

    Ten BeS cases were reported to the Registry in CY2025, representing 5 reporting organizations (1 HAN, 1 LANL, 1 LANL N3B, 1 ETTP, and 1 SRS).

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

  • Percent Proportion of Workers Diagnosed as CBD by Reporting Organization (n=157) (2002–2025) *
    Percent Proportion of Workers Diagnosed as CBD by Reporting Organization (n=157) (2002–2025) * infographic

    Of the 30 active sites, 11 reporting organizations have reported at least one worker diagnosed with chronic beryllium disease (CBD). This figure presents the distribution in percent for those 11 reporting organizations with workers diagnosed with CBD.  Approximately 62% of total CBD cases are associated with the Y-12 and HAN sites.

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

    ** One new CBD case was identified in CY2025 at SRS.

  • Number and Percent of Workers Categorized by Number of Years Following Hire Date, Undergoing BeLPT and Diagnosed with BeS or Diagnosed with CBD (n=58,563) (2002–2025) *
    Number and Percent of Workers Categorized by Number of Years Following Hire Date, Undergoing BeLPT and Diagnosed with BeS or Diagnosed with CBD (n=58,563) (2002–2025) * infographic

    This figure shows the number of beryllium-associated workers categorized by years following first hire, undergoing Beryllium Lymphocyte Proliferation Testing (BeLPT) tests.  This includes roster total, those screened, and those with beryllium sensitization (BeS) or chronic beryllium disease (CBD).

    For both BeS and CBD diagnoses, the majority of workers have been in a beryllium-associated job position for twenty or more years. However, it should also be pointed out that a significant number of workers do not have hire date reported, and the numbers of years post-hire cannot be calculated.

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

  • Number of Workers Undergoing BeLPT and Diagnosed with BeS or Diagnosed with CBD (n=41,158) (2002–2025) *

    This table provides the numbers of beryllium-associated workers with Beryllium Lymphocyte Proliferation Testing (BeLPT) results submitted to the Beryllium-Associated Worker Registry each year, and the year of first positive or abnormal BeLPT result for those who were beryllium-sensitized (BeS) or diagnosed as having chronic beryllium disease (CBD). First positive or abnormal BeLPT result is an important medical surveillance sentinel, resulting in earlier or more frequent repeat testing, hence, earlier diagnosis, earlier work restrictions, and more successful treatment. It is also a criterion for eligibility for compensation and payment of medical expenses under the Energy Employees Occupational Illness Compensation Program Act (EEOICPA). Two (2) abnormal BeLPT results or 1 abnormal and 2 borderline BeLPT results are required to categorize a worker as BeS. Since a worker may choose not to have repeat BeLPT measurements, may change work and have long lags between measurements, or may not test abnormal for a period of time, the year of first BeLPT provides a more reliable metric than the year a worker becomes BeS.

    Year of BeLPT Result Total No. Workers Tested No. Sensitized Workers No. Workers with CBD
    <2000 708 34 11
    2000 1,629 29 17
    2001 3,236 43 17
    2002 3,968 42 16
    2003 3,968 12 6
    2004 3,814 14 3
    2005 5,115 28 6
    2006 4,860 46 9
    2007 4,578 49 5
    2008 5,072 30 7
    2009 6,219 52 2
    2010 6,892 36 2
    2011 7,920 23 0
    2012 6,172 5 0
    2013 5,574 8 0
    2014 6,008 10 1
    2015 6,049 13 0
    2016 6,060 2 0
    2017 6,683 11 0
    2018 6,768 11 2
    2019 7,044 6 0
    2020 7,280 10 0
    2021 7,982 2 0
    2022 9,425 1 0
    2023 6,444 1 0
    2024 8,026 10 1
    2025 8,633 5 1
    Year Not Reported 0 28 51

    * The number of "Workers Tested" includes all testing with results of Normal, Negative, Borderline, Positive, Abnormal, and Unsatisfactory.  Workers tested periodically are included in each year they were tested.  Data capture includes prior to the year 2002.

  • Number and Percent Proportion of Workers with Abnormal BeLPT Results BeS or CBD Results by Job Category (n=41,158) (2002–2025) *

    The yearly average for workers developing sensitization, whose first abnormal Beryllium Lymphocyte Proliferation Test (BeLPT) results between Calendar Year 2001 (CY2001) and CY2010, was 35.  This rate dropped to an average of 6 from CY2015 to CY2025.  These results suggest that programs are serving to improve worker protection and reduce the risk of chronic beryllium disease (CBD).

    This table lists beryllium-sensitized (BeS), or CBD diagnosed workers, through CY2025 grouped by their work history activity, which is a high‑level rollup of job function.  Based on the data submitted through CY2025 and as presented in the table, the majority of both reported BeS (36%) and CBD cases (39%) occurred among the broad occupational groups of Crafts and Line Operators.

    Work History Activity Workers with BeLPT Results (n=41,158) No. Sensitized Workers (n=556) Beryllium Sensitization (%)
    		 No. Workers with CBD (n=157) Chronic Beryllium Disease (%)
    Management 1,975 47 (2.1%) 8% 10 (0.5%) 6%
    Administrative Support 956 32 (2.7%) 6% 11 (0.9%) 7%
    In-House Professionals 1,993 42 (2.0%) 8% 15 (0.7%) 10%
    Field Professionals 2,827 50 (1.6%) 9% 8 (0.3%) 5%
    Technical Support 4,471 75 (1.6%) 13% 15 (0.3%) 10%
    Service 1,735 34 (1.8%) 6% 12 (0.6%) 8%
    Security and Fire 1,262 27 (1.6%) 5% 9 (0.5%) 6%
    Crafts 6,246 108 (1.6%) 19% 38 (0.6%) 24%
    Line Operators 3,228 93 (2.5%) 17% 23 (0.6%) 15%
    Guests 105 1 (1.1%) <0.1% 0 (0%) <0.1%
    Unknown 812 14 (1.7%) 3% 11 (1.3%) 7%
    Not Reported 15,548 33 (0.3%) 6% 5 (<0.1%) 3%
    Totals 41,158 556 (1.4%) 157 (0.4%)

    Click here for List of Acronyms

    *Some reporting organizations have provided data that predate the 2002 start date of the Registry.

  • Comparison of the Number and Percent Proportion of Workers Undergoing BeLPT to the Number of Workers with BeLPT Results by Reporting Organization (n=8,633) (2025)
    Comparison of the Number and Percent Proportion of Workers Undergoing BeLPT to the Number of Workers with BeLPT Results by Reporting Organization (n=8,633) (2025) infographic

    This figure compares the percent of Beryllium Lymphocyte Proliferation Tests (BeLPTs) tests conducted to the number of workers tested for each reporting organization in Calendar Year 2025.  Workers may be BeLPT tested multiple times in a year if they have abnormal or borderline results.  Therefore, the number of BeLPT tests conducted are higher than the number of workers tested.

Exposure Monitoring Results

The Beryllium-Associated Worker Registry receives beryllium-related work history and exposure data.  The submission contains information about all activities with the potential for beryllium exposure including where the beryllium-associated worker currently works or previously worked, and the exposures associated with those activities.  Reporting organization staff collect retrospective work history information through questionnaires and interviews with the worker or from records if accessible.  This information includes location, organization, and job title for workers who work directly with beryllium, work in areas of potential beryllium exposure, even if not working directly with beryllium, and activities with potential casual exposure to beryllium, such as working near an area where others are working directly with beryllium.

Exposure Monitoring Trends - Workers

The cumulative number of workers monitored through Calendar Year 2025 (CY2025) was 7,726 compared to 9,449 workers monitored through CY2024 as reported in the Beryllium-Associated Worker Registry 2024 Dashboard.  This equates to a decrease of 1,723 workers monitored for exposure to beryllium through CY2025. 

Sixteen (16) reporting organizations provided exposure monitoring results with monitoring dates in CY2025.  Organization-specific totals for a given year may change from totals in previous annual reports due to late reporting and/or corrections.

  • Number and Percent of Workers Monitored by Reporting Organization (unique workers n=4,374) (2016–2025) *

    Reporting Organization 2016
    n=697    		 2017
    n=731    		 2018
    n=685    		 2019
    n=803    		 2020
    n=708    		 2021
    n=1,092    		 2022
    n=795    		 2023
    n=739    		 2024
    n=719

    2025
    n=754
    Ames Lab 0 (0.0%) 0 (0.0%) 0 (0.0%) 5 (0.6%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%)
    BNL 4 (0.6%) 4 (0.5%) 1 (0.1%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 3 (0.4%) 0 (0.0%)
    DOE-ORO 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 2 (0.2%) 2 (0.2%) 0 (0.0%) 0 (0.0%) 0 (0.0%)
    ETTP 2 (0.3%) 0 (0.0%) 0 (0.0%) 8 (1.0%) 85 (12.0%) 168 (17.9%) 153 (17.6%) 157 (21.2%) 74 (9.4%) 58 (7.7%)
    HAN 265 (38.0%) 359 (49.1%) 244 (35.4%) 324 (40.1%) 211 (29.7%) 225 (24.0%) 192 (22.1%) 154 (20.8%) 240 (30.3%) 156 (20.7%)
    INL 45 (6.5%) 31 (4.2%) 62 (9.0%) 52 (6.4%) 36 (5.1%) 45 (4.8%) 32 (3.7%) 27 (3.6%) 0 (0.0%) 0 (0.0%)
    KAPL 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 2 (0.3%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%)
    KCNSC 9 (1.3%) 7 (1.0%) 3 (0.4%) 2 (0.2%) 4 (0.6%) 7 (0.7%) 6 (0.7%) 4 (0.5%) 7 (0.9%) 2 (0.3%)
    LANL 64 (9.2%) 49 (6.7%) 85 (12.3%) 127 (16.0%) 93 (13.1%) 50 (5.3%) 29 (3.3%) 7 (0.9%) 35 (4.4%) 83 (11.0%)
    LANL N3B 0 (0.0%) 0 (0.0%) 0 (0.0%) 10 (1.2%) 7 (1.0%) 5 (0.5%) 4 (0.5%) 0 (0.0%) 0 (0.0%) 0 (0.0%)
    LLNL 21 (3.0%) 19 (2.6%) 16 (2.3%) 18 (2.2%) 3 (0.4%) 6 (0.6%) 12 (1.4%) 5 (0.7%) 2 (0.3%) 8 (1.1%)
    LLNL NW 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 1 (0.1%) 0 (0.0%) 0 (0.0%)
    NNSS 5 (0.7%) 1 (0.1%) 4 (0.6%) 15 (1.9%) 0 (0.0%) 0 (0.0%) 10 (1.2%) 8 (1.1%) 9 (1.1%) 9 (1.2%)
    ORNL 15 (2.2%) 11 (1.5%) 7 (1.0%) 10 (1.2%) 14 (2.0%) 28 (3.0%) 11 (1.3%) 7 (0.9%) 8 (1.0%) 22 (2.9%)
    PADUCAH 0 (0.0%) 13 (1.8%) 15 (2.2%) 5 (0.6%) 12 (1.7%) 6 (0.6%) 5 (0.6%) 2 (0.3%) 5 (0.6%) 17 (2.3%)
    PNNL 10 (1.4%) 8 (1.1%) 19 (2.8%) 9 (1.1%) 0 (0.0%) 4 (0.4%) 12 (1.4%) 7 (0.9%) 2 (0.3%) 6 (0.8%)
    PNNL AMC 4 (0.5) 2 (0.3%)
    PNNL DGR 2 (0.3%) 1 (0.1%)
    PORTS 1 (0.1%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%)
    PTX 53 (7.6%) 27 (3.7%) 34 (4.9%) 32 (4.0%) 43 (6.0%) 42 (4.5%) 19 (2.2%) 42 (5.7%) 30 (3.8%) 24 (3.2%)
    SNL 10 (1.4%) 8 (1.1%) 4 (0.6%) 9 (1.1%) 7 (1.0%) 6 (0.6%) 9 (1.0%) 13 (1.8%) 7 (0.9%) 7 (0.9%)
    SRS 3 (0.4%) 6 (0.8%) 4 (0.6%) 3 (0.4%) 6 (0.8%) 4 (0.4%) 3 (0.3%) 4 (0.5%) 12 (1.5%) 3 (0.4%)
    Y-12 181 (26.0%) 178 (24.4%) 178 (25.8%) 158 (19.6%) 169 (23.8%) 322 (34.3%) 354 (40.8%) 293 (39.6%) 338 (42.7%) 345 (45.8%)
    Y-12 ANS 10 (1.4%) 10 (1.4%) 13 (1.9%) 18 (2.2%) 19 (2.7%) 18 (1.9%) 14 (1.6%) 9 (1.2%) 13 (1.6) 11 (1.5%)
    Totals 697 (100%)
    		 731 (100%)
    		 689 (100%)
    		 807 (100%)
    		 711 (100%) 939 (100%) 867 (100%) 740 (100%) 791 (100%) 754 (100%)

    Click here for List of Acronyms

    * Some reporting organizations have provided data that predate the 2002 start date of the Registry

    An industrial hygienist monitored exposure for workers by reporting organization at least once in each year for the past 10 years (i.e., between 2016 and 2025). 

     

  • Number and Percent Proportion of Workers Undergoing Beryllium Exposure Monitoring by Reporting Organization (n=9,659) (2002-2025) *
    Number and Percent Proportion of Workers Undergoing Beryllium Exposure Monitoring by Reporting Organization (n=9,659) (2002-2025) * infographic

    This figure displays the cumulative 9,659 beryllium-associated workers monitored for beryllium exposure in Calendar Years 2002–2025 by reporting organization.

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

Exposure Monitoring Trends - Samples

  • Number and Percent Proportion of Exposure Sample Results by Year (n=39,664) (2016–2025) *
    Number and Percent Proportion of Exposure Sample Results by Year (n=39,664) (2016–2025) * infographic

    The numbers of exposure sampling results in the Beryllium-Associated Worker Registry (BAWR) by year monitored for each of the past 10 years are shown in the line chart.

    As can be seen, the numbers have steadily declined in recent years, with an uptick in CY2021 and CY2025.  The reporting organizations that collected and submitted exposure monitoring sample data show a downward trend which, in some cases, impact the analysis and interpretation of results in BAWR.  The small sample size reduces accuracy and leads to higher variability in the statistical models used for the BAWR analyses. Calendar Year 2024 had the highest number of samples in the past 10 years.  Calendar Year 2025, the number of exposure records submitted was slightly fewer than the previous year but still remained higher than the 10 year average of 3,996 records.

  • Comparison of the Number and Percent Proportion of Exposure Samples to Workers with Exposure Sampling Results by Reporting Organizations (n=754) (2025)
    Comparison of the Number and Percent Proportion of Exposure Samples to Workers with Exposure Sampling Results by Reporting Organizations (n=754) (2025) infographic

    Only 16 of the 30 active sites reported exposure samples to BAWR in CY2025. This graphic illustrates the distribution of exposure samples and workers monitored across those 16 reporting organizations during.  Similar to the beryllium screening results, most workers monitored for beryllium exposure have multiple exposure measurements throughout the year.  The frequency of monitoring is dependent on the worker’s specific type of work and their employer’s monitoring schemes.

    Reporting organizations submitted a total of 133,983 exposure measurements to the Beryllium-Associated Worker Registry (BAWR) through Calendar Year 2025 (CY2025).  This equates to 4,829 exposure sampling results collected and submitted in CY2025.

  • Number and Percent Proportion of Non-Detectable Results Exposure Measurements, Detectable Exposure Measurement Results and Exposure Measurement Status Not Reported (n=133,983) (2002–2025 ) *
    Number and Percent Proportion of Non-Detectable Results Exposure Measurements, Detectable Exposure Measurement Results and Exposure Measurement Status Not Reported (n=133,983) (2002–2025 ) * infographic

    Of the 133,983 cumulative exposure monitoring records submitted to the Registry through Calendar Year 2025 (CY2025), 91.9% have “non-detectable” results, indicating that the sample analysis results were less than the laboratory’s reporting limit.  The reporting limit can vary from sample to sample because of differing flow rates of the sampling equipment used and because of the presence of other materials on the sample that can interfere with the analysis.  Reporting limits typically vary from 0.01 to 0.05 µg/m3, which is one‑twentieth to one-quarter of the action level of 0.2 µg/m3.

    In comparison, 4,829 records (including those monitoring dates in CY2024 and earlier) were submitted to the Registry in CY2025.  This increase in sampling results is higher than the 3,680 records submitted in CY2022 and 2,734 records submitted in CY2023, but lower than the 5,918 samples submitted in CY2024.

    *Some reporting organizations have provided data that predate the 2002 start date of the registry.

    **Non-detectable indicates that analysis results were reported as less than the laboratory's reporting limit.

Trends in Exposure Levels

  • Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m3 by Year (2016–2025) *
    Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m<sup>3</sup> by Year (2016–2025) * infographic

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m3 based on 95% Confidence Limits

    This figure shows the percentage of DOE-wide 8-hour time weighted average (TWA) personal exposure monitoring results that exceeded the action level of 0.2 μg/m3 in each of the 10 years from Calendar Year 2016 (CY2016) to CY2025.

    Summary Statistics for 2016–2025 8-Hour Time Weighted Average Exposure Monitoring Results *
    Year 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 10-year Summary
    Number of reported monitoring results 4,461 (13%) 3,405 (9.9%) 3,166 (9.2%) 2,804 (8.2%) 2,517 (7.3%) 4,738 (13.8%) 4,064 (11.8%) 2,736 (8%) 4,060 (11.8%) 2,449 (7.1%) 34,400 (100%)
    Number of detected values 241 (17.9%) 175 (13%) 243 (18.1%) 168 (12.5%) 71 (5.3%) 79 (5.9%) 85 (6.3%) 65 (4.8%) 144 (10.7%) 72 (5.4%) 1,343 (100%)
    Percent non-detects 94.6 94.9 92.3 94 97.2 98.3 97.9 97.6 96.5 97.1 96.1
    Number of individuals monitored 694 (16.1%) 730 (17%) 689 (16%) 807 (18.8%) 711 (16.5%) 939 (21.8%) 843 (19.6%) 723 (16.8%) 773 (18%) 718 (16.7%) 4,304 (100%)
    Arithmetic mean (EX) (µg/m3) 0.016 0.842 0.398 0.164 0.021 0.230 0.036 1.752 2,793 0.001 0.114
    Lower confidence limit of EX (µg/m3) 0.008 0.128 0.108 0.38 0.003 0.011 0.005 0.031

    0.188

    		 0.001 0.067
    Upper confidence limit of EX (µg/m3) 0.031 5.521 1.468 0.700 0.140 5.015 0.280 97.785 41.435 0.002 0.195
    Observed 95th percentile of data (µg/m3) 0.005 0.006 0.020 0.011 0.001 <0.01 <0.01 0.003 <0.01 0.008 0.004
    95% upper tolerance limit of the 95th percentile (µg/m3) 0.020 0.020 0.031 0.026 0.012 0.013 0.011 0.011 0.011 0.009 0.016
    Largest value (µg/m3) 8.865 87.419 16.712 23.084 17.340 6.609 2.897 37.536 16.368 0.200 87.419
    Percent exceeding 0.2 µg/m3 (F) 0.6 1.0 1.5 0.9 0.3 0.3 0.3 0.5 0.8 0.1 0.6
    Lower confidence limit for F 0.5 0.8 1.2 0.7 0.2 0.2 0.2 0.3 0.6 0.0 0.6
    Upper confidence limit for F 0.8 1.3 1.8 1.2 0.5 0.4 0.4 0.7 1.0 0.1 0.7

    * Many individuals were monitored in more than 1 year.  The total number of individuals measured at least once in the 10-year period from CY2016 through CY2025 is 4,374.  Some reporting organizations have provided data that predate the CY2002 start date of the registry.  Percent exceeding 0.2 μg/m3 based on 95% Confidence Limits.

    The detailed data presented in the table above provide additional summary statistics for the DOE-wide 8-hour TWA results for each of the past 10 years.

    These statistical methods accommodate the high percentage of non-detect results (left censored) in these data sets.  These analyses exclude non-detected values greater than 0.2 µg/m3. For details, see “Statistical Methods and Software for the Analysis of Occupational Exposure Data with Non-Detectable Values” Frome EL and Wambach PF, ORNL/TM-2005/52.

    Totals for an individual year may vary from previous reports due to late reporting and/or corrections.  The data reported in the Beryllium-Associated Worker Registry indicate that the chronic beryllium disease prevention programs operated at DOE sites have continued to maintain a compliance with the 10 CFR 850 action level of 0.2 µg/m3 over the past 10 years.

    2016

    Upper confidence limit for F: 0.8

    Percent exceeding 0.2 µg/m3 (F): 0.6

    Lower confidence limit for F: 0.5

    2017

    Upper confidence limit for F: 1.3

    Percent exceeding 0.2 µg/m3 (F): 1.0

    Lower confidence limit for F: 0.8

    2018

    Upper confidence limit for F: 1.8

    Percent exceeding 0.2 µg/m3 (F): 1.5

    Lower confidence limit for F: 1.2

    2019

    Upper confidence limit for F: 1.2

    Percent exceeding 0.2 µg/m3 (F): 0.9

    Lower confidence limit for F: 0.7

    2020

    Upper confidence limit for F: 0.5

    Percent exceeding 0.2 µg/m3 (F): 0.3

    Lower confidence limit for F: 0.2

    2021

    Upper confidence limit for F: 0.4

    Percent exceeding 0.2 µg/m3 (F): 0.3

    Lower confidence limit for F: 0.2

    2022

    Upper confidence limit for F: 0.4

    Percent exceeding 0.2 µg/m3 (F): 0.3

    Lower confidence limit for F: 0.2

    2023

    Upper confidence limit for F: 0.7

    Percent exceeding 0.2 µg/m3 (F): 0.5

    Lower confidence limit for F: 0.3

    2024

    Upper confidence limit for F: 1.0

    Percent exceeding 0.2 µg/m3 (F): 0.8

    Lower confidence limit for F: 0.6

    2025

    Upper confidence limit for F: 0.1

    Percent exceeding 0.2 µg/m3 (F): 0.1

    Lower confidence limit for F: 0.0

Exceedances Observed through 2025

  • Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m3 by Work History Activity (2002-2025) *
    Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m<sup>3</sup> by Work History Activity (2002-2025) * infographic

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m3 based on 95% Confidence Limits.

    The graphic shows the percentage of 8-hour time weighted average (TWA) exposure monitoring results that exceed the action level, grouped by work activity for the cumulative data through CY2025.  The detailed data in the table provide additional summary statistics for the composite 8-hour TWA results by work activity.

    For the cumulative data, the highest percentage of action level exceedances by work history activity is among workers where the work activity is unknown or not reported.

    Summary Statistics for 8-hour time weighted average (TWA) Exceeding Action Level 0.2 μg/m 3 by Work History Activity (2002-2025)*
    Work History Activity Admin. Craft Field Prof. Guests In-house Prof. Line Operator Management Security & Fire Service Tech Support Not Reported Total
    No. reported monitoring results 1,804 (1.4%) 54.914 (43.2%) 418 (0.3%) 6.845 (5.4%) 45 (0.0%) 4,735 (3.7%) 6,077 (4.8%) 15,931 (12.5%) 12,104 (9.5%) 9,746 (7.7%) 14,572 (11.5%) 127,191 (100%)
    No. detected values 62 (0.6%) 2,664 (27%) 17 (0.2%) 688 (7%) 11 (0.1%) 511 (5.2%) 513 (5.2%) 1,923 (19.5%) 1,158 (11.7%) 653 (6.6%) 1,671 (16.9%) 9,871 (100%)
    % non-detects 96.7 95.1 96.3 90.3 82.4 88.5 91.1 83.1 90.5 93.2 87.9 91.9
    No. individuals monitored 111 (1.2%) 2,992 (31.5%) 107 (1.1%) 826 (8.7%) 7 (0.1%) 384 (4.0%) 377 (4.0%) 1,859 (19.6%) 1,442 (15.2%) 918 (9.7%) 1,532 (16.1%) 9,491 (100%)
    Observed 95th percentile of data (µg/m 3) <0.01 0.008 0.001 0.034 0.019 0.046 0.021 0.063 0.050 0.016 0.050 0.021
    95% UTL of 95th percentile (µg/m 3) 0.038 0.050 0.050 0.058 NA 0.053 0.050 0.082 0.096 0.050 0.080 0.050
    Largest value (µg/m 3) 28.475 84.933 11.700 26.678 0.172 12.611 87.419 7.670 575.930 79.330 29.852 575.930
    % > 0.2 µg/m 3 (F) 1.0 0.8 1.7 1.7 0.4 2.0 1.3 1.9 2.2 1.3 1.9 1.4
    Lower confidence limit for F 0.7 0.8 0.9 1.5 <0.1 1.7 1.1 1.7 2.0 1.2 1.8 1.3
    Upper confidence limit for F 1.3 0.9 2.9 1.9 3.6 2.2 1.5 2.0 2.4 1.5 2.1 1.4

    *Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m3 based on 95% Confidence Limits.

    Guests

    Upper confidence limit for F: 1.9

    Percent exceeding 0.2 µg/m3 (F): 1.7

    Lower confidence limit for F: 1.5

    Administrative

    Upper confidence limit for F: 1.3

    Percent exceeding 0.2 µg/m3 (F): 1.0

    Lower confidence limit for F: 0.7

    Craft

    Upper confidence limit for F: 0.9

    Percent exceeding 0.2 µg/m3 (F): 0.8

    Lower confidence limit for F: 0.8

    Service

    Upper confidence limit for F: 2.4

    Percent exceeding 0.2 µg/m3 (F): 2.2

    Lower confidence limit for F: 2.0

    Management

    Upper confidence limit for F: 1.5

    Percent exceeding 0.2 µg/m3 (F): 1.3

    Lower confidence limit for F: 1.1

    Not Reported

    Upper confidence limit for F: 2.1

    Percent exceeding 0.2 µg/m3 (F): 1.9

    Lower confidence limit for F: 1.8

    Security & Fire

    Upper confidence limit for F: 2.0

    Percent exceeding 0.2 µg/m3 (F): 1.9

    Lower confidence limit for F: 1.8

    Field Professional

    Upper confidence limit for F: 2.9

    Percent exceeding 0.2 µg/m3 (F): 1.7

    Lower confidence limit for F: 0.9

    In-House Professional

    Upper confidence limit for F: 3.6

    Percent exceeding 0.2 µg/m3 (F): 0.4

    Lower confidence limit for F: <0.1

    Tech Support

    Upper confidence limit for F: 1.5

    Percent exceeding 0.2 µg/m3 (F): 1.3

    Lower confidence limit for F: 1.2

    Line Operator

    Upper confidence limit for F: 2.2

    Percent exceeding 0.2 µg/m3 (F): 2.0

    Lower confidence limit for F: 1.7

  • Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m3 by Job Title for Craft Workers (2002–2025) *
    Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m<sup>3</sup> by Job Title for Craft Workers (2002–2025) * infographic

    This graphic shows individuals with job titles in the craft work activity category and is highlighted because it represents the largest occupational category in BAWR.  The detailed data through 2025 presented in the accompanying table include the summary statistics for cumulative 8-hour TWA monitoring results by craft job title.  Machinist, Deactivation & Decommissioning (D&D Worker), Electrician, Plumber & Fitter, Millwright, Painter, Carpenter, Mechanic, Iron Worker, Waste-Management Mechanic, Sheet Metal Worker, and Heating, Ventilation, and Air Conditioning (HVAC) Mechanic individually have percent exceedances that are higher than when all crafts are combined (0.8% to 8.4% as compared to 0.7%, as shown in the table below).

    Among craft workers, HVAC Mechanic, Sheet Metal Worker, Iron Worker, Waste-Management Mechanic, and Mechanic show percentages exceeding the 0.2 µg/m3 action level that are higher than the percentages experienced by other craft workers.  However, the percentage for HVAC mechanics reflects exposure monitoring results for only 45 individuals, and for sheet metal workers only 146 individuals.

    Summary Statistics for 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m 3 by Job Title (2002-2025)*
    Craft Job Title Number of reported monitoring results Number of detected values Percent non-detects Number of individuals monitored Observed 95th% of data (µg/m 3) 95% UTL of 95th% (µg/m 3) Largest value (µg/m 3) Percent exceeding 0.2 µg/m 3 (F) Lower confidence limit for F Upper confidence limit for F
    Insulator 171 (0%) 1 (0%) 99.4 29 (1%) 0.20 <0.01 20 <0.01 <0.01 1.7
    Heavy Equip Operator 1,465 (3%) 66 (2%) 95.5 161 (5%) <0.01 0.02 12.45 0.2 0.1 0.3
    Welder 1,211 (2%) 31 (1%) 97.4 58 (2%) 0.01 0.02 0.36 0.2 0.1 0.4
    Maintenance Mechanic 803 (1%) 19 (1%) 97.6 127 (4%) <0.01 0.03 0.20 0.2 0.1 0.5
    Laborer 4,055 (7%) 80 (3%) 98.0 444 (15%) <0.01 0.04 10.34 0.2 0.2 0.4
    Other Crafts 24,932 (45%) 716 (27%) 97.1 576 (19%) <0.01 0.02 37.30 0.4 0.3 0.4
    Hazardous Waste Worker 277 (1%) 7 (0%) 97.5 31 (1%) <0.01 0.15 0.18 0.6 0.1 2.0
    Machinist 7,069 (13%) 321 (12%) 95.5 135 (5%) 0.01 0.05 51.89 0.8 0.7 0.9
    D&D Worker 1,536 (3%) 160 (6%) 89.6 29 (1%) 0.03 0.04 2.90 0.9 0.7 1.3
    Electrician 4,876 (9%) 369 (14%) 92.4 474 (16%) 0.02 0.05 14.42 1.0 0.8 1.2
    Plumber & Fitter 2,988 (5%) 181 (7%) 93.9 311 (10%) 0.01 0.05 5.73 1.1 0.9 1.4
    Millwright 931 (2%) 49 (2%) 94.7 149 (5%) 0.01 0.05 20.18 1.4 0.9 2.0
    Painter 1,389 (3%) 187 (7%) 86.5 69 (2%) 0.05 0.07 7.42 1.7 1.3 2.2
    Carpenter 1,417 (3%) 131 (5%) 90.8 164 (5%) 0.04 0.05 3.18 1.8 1.3 2.3
    Mechanic 132 (0%) 11 (0%) 91.7 43 (1%) 0.02 0.07 0.14 1.9 0.7 4.6
    Iron Worker 236 (0%) 30 (1%) 87.3 67 (2%) 0.13 0.32 1.85 3.2 1.9 5.3
    Waste-Mgmt Mechanic 132 (0%) 16 (1%) 87.9 15 (1%) 0.11 1.10 2.39 3.9 2.0 7.2
    Sheet Metal Worker 989 (2%) 168 (6%) 83.0 146 (5%) 0.18 0.32 8.87 4.2 3.4 5.1
    HVAC Mechanic 305 (1%) 121 (5%) 60.3 32 (1%) 0.35 0.84 6.40 8.4 6.4 10.8
    All Combined Craft 54,914 (100%) 2,664 (100%) 95.1 2,992 (100%) 0.01 0.05 51.89 0.8 0.7 0.8

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m 3

    Insulator

    Upper confidence limit for F: 1.7

    Percent exceeding 0.2 µg/m3 (F): <0.01

    Lower confidence limit for F: <0.1

    Heavy Equip Operator

    Upper confidence limit for F: 0.3

    Percent exceeding 0.2 µg/m3 (F): 0.2

    Lower confidence limit for F: 0.1

    Welder

    Upper confidence limit for F: 0.4

    Percent exceeding 0.2 µg/m3 (F): 0.2

    Lower confidence limit for F: 0.1

    Maintenance Mechanic

    Upper confidence limit for F: 0.5

    Percent exceeding 0.2 µg/m3 (F): 0.2

    Lower confidence limit for F: 0.1

    Laborer

    Upper confidence limit for F: 0.4

    Percent exceeding 0.2 µg/m3 (F): 0.4

    Lower confidence limit for F: 0.3

    Other Crafts

    Upper confidence limit for F: 0.4

    Percent exceeding 0.2 µg/m3 (F): 0.4

    Lower confidence limit for F: 0.3

    Hazardous Waste Worker

    Upper confidence limit for F: 2.0

    Percent exceeding 0.2 µg/m3 (F): 0.6

    Lower confidence limit for F: 0.1

    Machinist

    Upper confidence limit for F: 0.9

    Percent exceeding 0.2 µg/m3 (F): 0.8

    Lower confidence limit for F: 0.7

    D&D Worker

    Upper confidence limit for F: 1.3

    Percent exceeding 0.2 µg/m3 (F): 0.9

    Lower confidence limit for F: 0.7

    Electrician

    Upper confidence limit for F: 1.2

    Percent exceeding 0.2 µg/m3 (F): 1.0

    Lower confidence limit for F: 0.8

    Plumber & Fitter

    Upper confidence limit for F: 1.4

    Percent exceeding 0.2 µg/m3 (F): 1.1

    Lower confidence limit for F: 0.9

    Millwright

    Upper confidence limit for F: 2.3

    Percent exceeding 0.2 µg/m3 (F): 1.4

    Lower confidence limit for F: 0.9

    Painter

    Upper confidence limit for F: 2.2

    Percent exceeding 0.2 µg/m3 (F): 1.7

    Lower confidence limit for F: 1.3

    Carpenter

    Upper confidence limit for F: 2.3

    Percent exceeding 0.2 µg/m3 (F): 1.8

    Lower confidence limit for F: 1.3

    Mechanic

    Upper confidence limit for F: 4.6

    Percent exceeding 0.2 µg/m3 (F): 1.9

    Lower confidence limit for F: 0.7

    Iron Worker

    Upper confidence limit for F: 5.3

    Percent exceeding 0.2 µg/m3 (F): 3.2

    Lower confidence limit for F: 1.9

    Waste-Mgmt Mechanic

    Upper confidence limit for F: 7.2

    Percent exceeding 0.2 µg/m3 (F): 3.9

    Lower confidence limit for F: 2.0

    Sheet Metal Worker

    Upper confidence limit for F: 5.1

    Percent exceeding 0.2 µg/m3 (F): 4.2

    Lower confidence limit for F: 3.4

    HVAC Mechanic

    Upper confidence limit for F: 10.8

    Percent exceeding 0.2 µg/m3 (F): 8.4

    Lower confidence limit for F: 6.4

  • Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m3 by Reporting Organization (2002-2025) *
    Percent of 8-hour time weighted average (TWA) Exceeding Action Level 0.2 µg/m<sup>3</sup> by Reporting Organization (2002-2025) * infographic

    This chart summarizes the cumulative 8-hour TWA exposure monitoring results through Calendar Year 2025 by reporting organization.  The detailed data presented below include the summary statistics for the cumulative 8-hour TWA monitoring results for each reporting organization that reported workers with a percentage exceeding the exposure level.  The percentage of monitoring results exceeding the action level at Y-12, ANL, SNL, PORTS, and Fermi (ranging from 1.5 to 17.2%) were higher than the overall percent exceedances when data across all organizations are combined (1.3%).

    The graphic does not include results from Ames Lab, HAN, KCNSC, LANL N3B, LBNL, LLNL CHES, LLNL NW, ORNL, PADUCAH, PNNL AMC, PTX, SLAC, SRS, and Y-12 ANS because of the small number of total samples and/or low percent exceeding the action level.

    Summary Statistics for 8-hour time weighted average (TWA) Exceeding Action Level 0.2 μg/m3 by Reporting Organization (2002-2024)*
    Reporting Organization No. monitoring results No. detected values % non-detects No. individ. monitored Obs. 95th percentile (µg/m 3) 95% UTL /95th % (µg/m 3) Largest value (µg/m 3) % > 0.2 µg/m 3 (F) Lower confidence limit for F Upper confidence limit for F
    Ames Lab 57 (0%) 3 (0.0%) 94.7 12 (1.7%) <0.1 < 0.1 0.028 < 0.1 < 0.1 91.1
    ANL 155 (0.1%) 18 (0.2%) 88.4 2 (0.3%) 0.145 1.100 2.390 4.104 2.251 7.0
    BNL 108 (0.1%) 2 (0.0%) 98.1 23 (3.2%) 0.002 0.100 0.100 0.485 < 0.1 49.3
    DOE-ORO 4 (0.0%) 0 (0.0%) 100.0 8 (1.1%) 0.007 < 0.1 0.007 < 0.1 < 0.1 52.7
    ETTP 234 (0.2%) 0 (0.0%) 100.0 58 (8.1%) 0.009 < 0.1 0.031 < 0.1 < 0.1 1.3
    Fermi 48 (0.0%) 22 (0.2%) 54.2 1 (0.1%) 1.296 < 0.1 4.800 17.240 10.578 26.1
    HAN 548 (0.4%) 0 (0.0%) 100.0 58 (8.1%) 0.003 < 0.1 0.200 < 0.1 < 0.1 0.7
    INL 2,329 (1.8%) 274 (2.8%) 88.2 26 (3.6%) 0.036 0.093 2.897 1.182 0.920 1.5
    KAPL 236 (0.2%) 2 (0.0%) 99.2 39 (5.4%) 0.006 0.200 0.200 0.297 < 0.1 27.4
    KCNSC 6 (0.0%) 0 (0.0%) 100.0 156 (21.7%) 0.021 < 0.1 0.027 < 0.1 < 0.1 39.3
    LANL 14,457 (11.4%) 2,787 (28.2%) 80.7 2 (0.3%) 0.040 0.055 26.678 1.066 0.969 1.2
    LANL N3B 53 (0.0%) 1 (0.0%) 98.1 23 (3.2%) 0.014 < 0.1 0.015 < 0.1 < 0.1 5.5
    LBNL 18 (0.0%) 0 (0.0%) 100.0 8 (1.1%) 0.100 < 0.1 0.100 < 0.1 < 0.1 15.3
    LLNL 6,795 (5.3%) 303 (3.1%) 95.5 330 (46.0%) 0.013 0.033 5.133 0.477 0.379 0.6
    LLNL CHES 3 (0.0%) 0 (0.0%) 100.0 1 (0.1%) 0.040 < 0.1 0.042 < 0.1 < 0.1 63.2
    LLNL NW 2 (0.0%) 1 (0.0%) 50.0 1 (0.1%) 0.043 < 0.1 0.044 < 0.1 < 0.1 77.6
    NNSS 1,129 (0.9%) 94 (1.0%) 91.7 297 (41.4%) 0.010 0.052 0.317 0.658 0.416 1.0
    ORNL 36 (0.0%) 0 (0.0%) 97.2 22 (3.1%) 0.010 < 0.1 0.019 < 0.1 < 0.1 8.0
    PADUCAH 90 (0.1%) 0 (0.0%) 100.0 17 (2.4%) 0.007 < 0.1 0.007 < 0.1 < 0.1 3.3
    PNNL 245 (0.2%) 10 (0.1%) 95.9 62 (8.6%) 0.002 0.005 0.028 0.015 0.001 0.2
    PNNL AMC 2 (0.0%) 0 (0.0%) 100.0 2 (0.3%) 0.001 < 0.1 0.001 < 0.1 < 0.1 77.6
    PORTS 5 (0.0%) 2 (0.0%) 60.0 2 (0.3%) 0.376 < 0.1 0.500 8.612 < 0.1 99.7
    PTX 39 (0.0%) 0 (0.0%) 100.0 24 (3.3%) 0.010 < 0.1 0.014 < 0.1 < 0.1 7.4
    SLAC 42 (0.0%) 0 (0.0%) 100.0 26 (3.6%) 0.040 < 0.1 0.150 < 0.1 < 0.1 6.9
    SNL 1,040 (0.8%) 392 (4.0%) 62.3 3 (0.4%) 0.130 0.180 3.820 4.279 3.512 5.2
    SRS 3 (0.0%) 0 (0.0%) 100.0 1 (0.1%) 0.005 < 0.1 0.095 < 0.1 < 0.1 63.2
    Y-12 70,890 (55.7%) 5,096 (51.6%) 92.8 345 (48.1%) 0.028 0.050 87.419 1.458 1.397 1.5
    Y-12 ANS 1 (0.0%) 1 (0.0%) 0.0 1 (0.1%) 0.014 < 0.1 0.014 < 0.1 < 0.1 95.0
    All 127,191 (100%) 9,871 (100%) 92.2 718 (100%) 0.020 0.050 575.930 1.3 1.3 1.3

    Click here for List of Acronyms

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m 3

    PNNL

    Upper confidence limit for F: 0.2

    Percent exceeding 0.2 µg/m3 (F): <0.1

    Lower confidence limit for F: <0.1

    KAPL

    Upper confidence limit for F: 27.4

    Percent exceeding 0.2 µg/m3 (F): 0.3

    Lower confidence limit for F: < 0.1

    LLNL

    Upper confidence limit for F: 0.6

    Percent exceeding 0.2 µg/m3 (F): 0.5

    Lower confidence limit for F: 0.4

    BNL

    Upper confidence limit for F: 49.3

    Percent exceeding 0.2 µg/m3 (F): 0.5

    Lower confidence limit for F: <0.1

    NNSS

    Upper confidence limit for F: 1.0

    Percent exceeding 0.2 µg/m3 (F): 0.7

    Lower confidence limit for F: 0.4

    LANL

    Upper confidence limit for F: 1.2

    Percent exceeding 0.2 µg/m3 (F): 1.1

    Lower confidence limit for F: 1.0

    INL

    Upper confidence limit for F: 1.5

    Percent exceeding 0.2 µg/m3 (F): 1.2

    Lower confidence limit for F: 0.9

    Y-12

    Upper confidence limit for F: 1.5

    Percent exceeding 0.2 µg/m3 (F): 1.5

    Lower confidence limit for F: 1.4

    ANL

    Upper confidence limit for F: 7.0

    Percent exceeding 0.2 µg/m3 (F): 4.1

    Lower confidence limit for F: 2.3

    SNL

    Upper confidence limit for F: 5.2

    Percent exceeding 0.2 µg/m3 (F): 4.3

    Lower confidence limit for F: 3.5

    PORTS

    Upper confidence limit for F: 99.7

    Percent exceeding 0.2 µg/m3 (F): 8.6

    Lower confidence limit for F: < 0.1

    Fermi

    Upper confidence limit for F: 26.1

    Percent exceeding 0.2 µg/m3 (F): 17.2

    Lower confidence limit for F: 10.6

  • Exposure Monitoring Results Exceeding Action Level 0.2 µg/m3 by Reporting Organization (2025) *
    Exposure Monitoring Results Exceeding Action Level 0.2 µg/m<sup>3</sup> by Reporting Organization (2025) * infographic

    This graphic provides the percent of exposure monitoring results that exceeded the action level by reporting organization for Calendar Year 2025 (CY2025).  Fewer organizations reported exposure monitoring in recent years, and those organizations submitting data have also reported fewer sampling results.  This downward trend impacts the analysis and interpretation of results in the Beryllium-Associated Worker Registry (BAWR).  The small sample size reduces accuracy and causes higher variability in the statistical models used.  Certainly, the wide confidence intervals in the single year CY2025 analysis demonstrate the reduction of statistical power and confidence in the interpretation when compared to similar but larger samples of the population.

    The table below gives additional summary statistics for organizations reporting exposure data to the BAWR during CY2025.  Organizations that did not report data for CY2025 are not included in this table.

    The data in the graphic and table show that SNL (had the greatest percentage (4.9%) of reported exposure monitoring results exceeding the action level in CY2025.

    Summary Statistics for Exposure Monitoring Results Exceeding Action Level 0.2 μg/m3 by Reporting Organization (2025)*
    Reporting Organization No. monitoring results No. detected values % non-detects No. individ. monitored Obs. 95th percentile (µg/m3) 95% UTL /95th% (µg/m3) Largest value (µg/m3) % > 0.2 µg/m3 (F) Lower confidence limit for F Upper confidence limit for F
    ETTP 234 (9%) 0 (0%) 100 58 (8%)
    HAN 465 (18%) 0 (0%) 100 156 (21%)
    KCNSC 6 (0%) 0 (0%) 100 2 (0%)
    LANL 218 (9%) 50 (70%) 77.1 83 (11%) 0.008 0.132 0.170 0.0 0.0 0.0
    LLNL 10 (0%) 0 (0%) 100 8 (100%)
    NNSS 24 (1%) 0 (0%) 100 9 (0%)
    ORNL 36 (1%) 0 (0%) 100 22 (1%)
    PADUCAH 90 (4%) 0 (0%) 100 17 (1%)
    PNNL 8 (0%) 0 (0%) 100 6 (3%)
    PNNL AMC 2 (0%) 0 (0%) 100 2 (2%)
    PNNL DGR 1 (0%) 0 (0%) 100 1 (1%)
    PTX 39 (2%) 0 (0%) 100 24 (0%)
    SNL 7 (0%) 4 (6%) 42.9 7 (0%) 0.119 < 0.1 0.130 9.6 0.5 49.3
    SRS 3 (0%) 0 (0%) 100 3 (3%)
    Y-12 1,357 (53%) 16 (23%) 98.8 345 (1%) 0.007 0.009 0.199 0.0 0.0 0.2
    Y-12 ANS 37 (1%) 1 (1%) 100 11 (0%)
    All 2,537 (100%) 71 (100%) 97.1 754 (46%) 0.008 0.009 0.200 0.1 0.0 0.1

    Click here for List of Acronyms

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 μg/m3 based on 95% Confidence Limits

    LANL

    Upper confidence limit for F: 0.04

    Percent exceeding 0.2 µg/m3 (F): < 0.1

    Lower confidence limit for F: < 0.1

    SNL

    Upper confidence limit for F: 49.30

    Percent exceeding 0.2 µg/m3 (F): 9.60

    Lower confidence limit for F: 0.50

    Y-12

    Upper confidence limit for F: 0.18

    Percent exceeding 0.2 µg/m3 (F): 0.04

    Lower confidence limit for F: 0.01

  • Exposure Monitoring Results Exceeding Action Level 0.2 µg/m3 by Reporting Organization (2025)

    This table provides the reporting organization, process description, 8-hour time-weighted average (TWA), and the respirator assigned protection factor (APF) for the results observed above the action level through Calendar Year 2025 (CY2025).

    There were fewer exceedances for CY2025 compared to CY2024 with four (4) samples exceeding the action level in CY2025, compared with 30 in CY2024, and 15 in CY2023.  Since the total reported exposure sampling results continue to decrease over time, the proportion of exceedances is greater than in previous years. 

    Reporting Organization Process Description Job Title 8-hr TWA µg/m 3 Respirator APF
    HAN RO50 0.200 100
    HAN Light Vehicle Drivers 0.200 100
    HAN RO50 0.200 100
    HAN Light Vehicle Drivers 0.200 100

    Click here for List of Acronyms

    * Percent exceeding 0.2 μg/m 3 based on 95% Confidence Limits.

  • Exposure Monitoring Results Exceeding Action Level 0.2 µg/m3 by Reporting Organization (2024)

    This table provides the reporting organization, process description, 8-hour time-weighted average (TWA), and the respirator assigned protection factor (APF) for the results observed above the action level through Calendar Year 2024 (CY2024). Of note, 15 new exceedances were added to the CY2025 dashboard as new data was submitted to the Registry.

    There were more exceedances for CY2024 compared to CY2023 with thirty (30) samples exceeding the action level in CY2024, compared with 15 in CY2023, and 12 in CY2022.  Since the total reported exposure sampling results continue to decrease over time, the proportion of exceedances is greater than in previous years. 

    Reporting Organization Process Description Job Title 8-hr TWA µg/m 3 Respirator APF
    Y-12 Machine Cleaner Janitors and Cleaners 16.368 1,000
    Y-12 Machine Cleaner 16.368 1,000
    LANL Sheet Metal Worker Sheet Metal Worker 8.700 1,000
    Y-12 Maintenance Machinist 5.734 1,000
    Y-12 Assemblyperson 5.734 1,000
    Y-12 Outside Machinist 2.987 1,000
    Y-12 Outside Machinst 2.987 1,000
    Y-12 Assemblyperson 2.648 1,000
    Y-12 Maintenance Machinist 2.648 1,000
    Y-12 Carpenter 1.093 1,000
    Y-12 System Health Lead - UPF 1.093 1,000
    Y-12 Assemblyperson 0.888 1,000
    Y-12 Maintenance Machinist 0.888 1,000
    Y-12 System Health Lead - UPF 0.817 1,000
    Y-12 Carpenter 0.817 1,000
    Y-12 System Health Lead - UPF 0.638 1,000
    Y-12 Carpenter 0.638 1,000
    Y-12 Carpenter 0.598 1,000
    Y-12 System Health Lead - UPF 0.598 1,000
    Y-12 Outside Machinist 0.503 1,000
    Y-12 Outside Machinist 0.503 1,000
    Y-12 Assemblyperson 0.356 1,000
    Y-12 Machine Cleaner 0.356 1,000
    Y-12 Outside Machinist 0.319 1,000
    Y-12 Outside Machinist Machinists 0.319 1,000
    Y-12 Carpenter 0.259 1,000
    Y-12 System Health Lead - UPF 0.259 1,000
    ETTP Characterization 0.250 1,000
    HAN Industrial Hygienists 0.200
    HAN Industrial Hygienists 0.200

    Click here for List of Acronyms

    * Percent exceeding 0.2 μg/m 3 based on 95% Confidence Limits.

  • Exposure Monitoring Results Exceeding Action Level 0.2 µg/m3 by Reporting Organization (2023)

    This table provides the reporting organization, process description, 8-hour time-weighted average (TWA), and the respirator assigned protection factor (APF) for the results observed above the action level through Calendar Year 2023 (CY2023).

    There were more exceedances in CY2023 compared to CY2022 with fifteen (15) samples exceeding the action level in CY2023, compared with 12 in CY2022, and 12 in CY2021.  Since the total reported exposure sampling results continue to decrease over time, the proportion of exceedances is greater than in previous years.

    Reporting Organization Process Description Job Title 8-hr TWA µg/m 3 Respirator APF
    Y-12 Outside Machinist Machinists 37.536 1,000
    Y-12 Assemblyperson 25.982 1,000
    Y-12 Carpenter 1.921 1,000
    Y-12 Outside Machinist 1.667 1,000
    Y-12 Carpenter Carpenters 1.234 1,000
    Y-12 Carpenter 1.113 1,000
    Y-12 Carpenter Carpenters 0.754 1,000
    Y-12 Carpenter Carpenters 0.754 1,000
    Y-12 Assemblyperson 0.656 1,000
    Y-12 Carpenter Carpenters 0.626 1,000
    Y-12 Carpenter Carpenters 0.626 1,000
    Y-12 Pipefitter Plumbers and Pipefitters 0.501 1,000
    LANL Research Technologist 1 Research Technologist 1 0.356 1,000
    LANL Engineering Technologist 3 Engineering Technologiist 3 0.330 1,000
    Y-12 Outside Machinist Machinists 0.229 1,000

    Click here for List of Acronyms

    * Percent exceeding 0.2 μg/m 3 based on 95% Confidence Limits.

Health and Monitoring Comparisons

Two different reporting organization groups collect data associated with health monitoring and exposure monitoring.  Occupational health and medical groups collect health monitoring data and industrial hygiene groups collect exposure monitoring data.  In most cases, a data coordinator collates the data prior to submission to the Registry.  In this section, the health screening data compared to the exposure monitoring data provides insight on the effectiveness of coordination between the 2 activities.

  • Comparison of the Number and Percent Proportion for Beryllium-Associated Workers Diagnosed with BeS or CBD with and without Exposure Sampling Results by Reporting Organizations (n=718) (2002-2025) *

    Comparison of the Number and Percent Proportion for Beryllium-Associated Workers Diagnosed with BeS or CBD with and without Exposure Sampling Results by Reporting Organizations (n=718) (2002-2025) * infographic

    The data in the figure shows the collective number of Beryllium Sensitized (BeS) or Chronic Beryllium Disease (CBD) individuals through Calendar Year 2025 who have had exposure monitoring results submitted to the Registry.  The figure also illustrates the collective number of individuals who have not had exposure data submitted to the Registry.  A combined 68% of the workers identified as either BeS or CBD do not have exposure monitoring results submitted to the Registry. Thirty-three percent of workers (182 of 561) identified as BeS and 32% of workers (84 of 157) identified as CBD have exposure monitoring results submitted to the Registry.  The combined proportion of workers without exposure data in the annual summaries since 2016 averaged 68% (10-year average). 

    Of the 182 sensitization cases with exposure sampling data, 118 cases only had exposure sampling data with a monitoring date later than their reported date of BeS.  In other words, 65% of the BeS cases with exposure data had exposure monitoring initiated only after diagnosed as sensitized.

    Of the 157 workers reported as diagnosed with CBD, 51 (32%) of the cases had at least one exposure sampling measurement submitted to the Registry.  Industrial hygiene programs monitor workers diagnosed with CBD to ensure compliance with restricted duty.  Nevertheless, of the 157 workers with CBD, only 35 (22%) CBD cases had at least one reported exposure record dated later than their date of CBD diagnosis. Of those 35 cases, 17 workers had exposure monitoring initiated only after diagnosed as CBD.

    * Some reporting organizations have provided data that predate the 2002 start date of the registry.

  • Comparison of the Percent of Workers Diagnosed with BeS or CBD with Percent Exceeding Action Level 0.2 μg/m3 by Reporting Organization (2002-2025) *

    Comparison of the Percent of Workers Diagnosed with BeS or CBD with Percent Exceeding Action Level 0.2 μg/m3 by Reporting Organization (2002-2025) * infographic

    Click here for List of Acronyms

    * Some reporting organizations have provided data that predate the 2002 start date of the registry. Percent exceeding 0.2 µg/m3 based on 95% Confidence Limits.

    The figure compares the cumulative percentage of workers diagnosed as beryllium-sensitized (BeS) or with chronic beryllium disease (CBD) to the percentage of exposure samples exceeding the 0.2 µg/m3 action level for each reporting agency.  These data illustrate that no statistical correlation exists between the incidence of BeS/CBD and the percentage of exceedances among the exposure sampling results submitted to the Registry (Pearson product moment correlation coefficient = -0.122).  The lack of correlation could be due to sensitization and CBD cases associated with past work locations or conditions rather than the environment currently monitored.

Supplementary

Acronym List

Acronym Description
Ames Lab Ames National Laboratory
AMWTP Advanced Mixed Waste Treatment Project
ANL Argonne National Laboratory
BAL Bronchoalveolar Lavage
BAWR Beryllium-Associated Worker Registry
Be Beryllium
BeLPT Beryllium Lymphocyte Proliferation Test
BeS Beryllium Sensitization or Beryllium-Sensitized
BNL Brookhaven National Laboratory
CBD Chronic Beryllium Disease
CBDPP Chronic Beryllium Disease Prevention Program
CERCLA Comprehensive Environmental Response, Compensation, and Liability Act of 1980
CFR Code of Federal Regulations
CY Calendar Year
DOD U.S. Department of Defense
DOE U.S. Department of Energy
DOE-ORO U.S. Department of Energy - Oak Ridge Office
DOL U.S. Department of Labor
EEOICPA Energy Employees Occupational Illness Compensation Program Act
EHSS Office of the Associate Under Secretary for Environment, Health, Safety and Security
EH-10 Office of Health Programs & Environmental Radiation Protection
EH-12 Office of Health Studies and Former Worker Programs
ETTP East Tennessee Technology Park
EX Arithmetic Mean
F Percent Exceeding 0.2 µg/m3
Fermi Fermi National Accelerator Laboratory
HAN Hanford Site
INL Idaho National Laboratory
KAPL Knolls Atomic Power Laboratory
KCNSC Kansas City National Security Campus
LANL Los Alamos National Laboratory
LANL N3B Newport News Nuclear BWXT Los Alamos
LBNL Lawrence Berkeley National Laboratory
LLNL Lawrence Livermore National Laboratory
LLNL BU Lawrence Livermore National Laboratory Boston University (subcontractor) 
LLNL CHES Lawrence Livermore National Laboratory Clean Harbors Environmental Services (subcontractor) 
LLNL ENVC Lawrence Livermore National Laboratory Envirocon, Inc. (subcontractor)
LLNL NW Lawrence Livermore National Laboratory North Wind Services, LLC (subcontractor)
NA Not Applicable
NETL National Energy Technology Laboratory
NNSA DOE National Nuclear Security Administration
NNSS Nevada National Security Site
NSC National Security Campus
NSPS National Strategic Protective Services, LLC for ETTP and ORNL
OIG DOE Office of Inspector General
ORNL Oak Ridge National Laboratory
ORISE Oak Ridge Institute for Science and Education
OSHA DOL Occupational Safety and Health Administration
PADUCAH Paducah Site
PEL Personal Exposure Limit
PII Personally Identifiable Information
PNNL Pacific Northwest National Laboratory
PNNL AMC PNNL Apollo Mechanical Contractors
PNNL DGR PNNL DGR Gand Construction
PORTS Portsmouth Gaseous Diffusion Plant
PTX Pantex Plant
RCRA Resource Conservation and Recovery Act of 1976
Respirator APF Respirator Assigned Protection Factor
RF Rocky Flats Closure Project
S&G Simmons and Golden Security, LLC
SLAC SLAC National Accelerator Laboratory
SNL Sandia National Laboratories
SOMD Site Occupational Medical Director
SRS Savannah River Site
SWPA Southwestern Power Administration
TWA Time Weighted Average
µg/m3 Micrograms per Cubic Meter
UTL Upper Tolerance Limit
WSHP Worker Safety and Health Program
WSI Wackenhut Security Services, Inc. for ETTP, ORNL, and Y-12
Y-12 Y-12 National Security Complex
Y-12 ANS Y-12 National Security Complex Atkins Nuclear Secured (subcontractor)
Y-12 NRE Y-12 National Security Complex Navarro Research and Engineering (subcontractor) 
Y-12 URS Y-12 National Security Complex URS Corporation (subcontractor)

Calculations

Beryllium Sensitization Algorithm (current until revisions to 10 CFR 850 are passed): A worker is considered sensitized if any one of the following clinical criteria and incidence rules for the case definition of beryllium sensitizations is met. Often, a worker’s data will satisfy multiple criteria, and their date of sensitization is calculated as the earliest date any one of these is met.

  • 2 positive or abnormal beryllium proliferation test (BeLPT) results (based on 2 separate blood draws).
  • 1 positive or abnormal plus 2 (or more) borderline BeLPT results.
  • A positive or abnormal bronchoalveolar lavage (BAL) result.
  • CBD evaluation with a finding of sensitization but no chronic beryllium disease (CBD).

Exposure Monitoring Statistics: These calculations are based on the methods described in the Statistical Methods and Software for the Analysis of Occupational Exposure Data with Non-Detectable Values. Due to the limitations in laboratory analytic methods approaching nano- scales much of the airborne exposure monitoring data are subject to left censoring with a measurement below the detectable limit. The methods applied estimate non-detectable levels using maximum likelihoods for randomly left censored, lognormal data with alternative non-parametric methods applied when the lognormal distribution is in doubt due to small sample sizes.

Pearson Product-Moment Correlation Coefficient: The Pearson Product-Moment Correlation Coefficient monitors the dose response represented by the Beryllium-Associated Worker Registry (BAWR) data, and is calculated by site with the percent exceeding the action level and the percent beryllium sensitized or diagnosed with CBD.

References and Resources

Chronic Beryllium Disease Prevention Program, 10 CFR § 850 (1999). https://www.govinfo.gov/app/details/FR-1999-12-08/99-31181

Chronic Beryllium Disease Prevention Program, 10 CFR § 850 (2012). https://www.govinfo.gov/app/details/CFR-2012-title10-vol4/CFR-2012-title10-vol4-part850

Proposed Changes to Chronic Beryllium Disease Prevention Program, 10 CFR Part 850 (2016). https://www.gpo.gov/fdsys/pkg/FR-2016-06-07/pdf/2016-12547.pdf

Department of Energy, Office of Environment, Health, Safety and Security. (2019). DOE-SPEC-1142-2019, Beryllium Lymphocyte Proliferation Testing (BeLPT). Washington, DC: Department of Energy. Retrieved from https://www.standards.doe.gov/standards-documents/1100/1142-dspec-2019

Department of Energy, Office of Environment, Health, Safety and Security. (2019). DOE-STD-1187-2019, Beryllium-Associated Worker Registry Data Collection and Management Guidance. Washington, DC: Department of Energy. Retrieved from https://www.standards.doe.gov/standards-documents/1100/1187-astd-2019

Department of Energy, Office of the Associate Under Secretary for Environment, Health, Safety and Security. (2017). Beryllium-Associated Worker Registry 2017 Annual Report. Retrieved from https://www.energy.gov/sites/prod/files/2019/05/f62/2017_Annual_BAWR_Report_Final.pdf

Department of Labor, Occupational Safety and Health Administration. (n.d.). Overview. Retrieved from Beryllium: https://www.osha.gov/beryllium

Frome, E.L., Frome, D.P. (2015). STAND: Statistical Analysis of Non-Detects. R package version 4.0. https://CRAN.R-project.org/package=STAND

Frome, E.L., & Wambach, P.F. (2005). Statistical Methods and Software for the Analysis of Occupational Exposure Data with Non-Detectable Values. ORNL/TM-2005/52. https://info.ornl.gov/sites/publications/Files/Pub57493.pdf

Occupational Exposure to Beryllium and Beryllium Compounds in Construction and Shipyard Sectors, 29 CFR Parts 1915 and 1926 (2020).  https://www.govinfo.gov/content/pkg/FR-2020-08-31/pdf/2020-18017.pdf

PEARSON function. Microsoft Excel. https://support.microsoft.com/en-us/office/pearson-function-0c3e30fc-e5af-49c4-808a-3ef66e034c18

R Core Team. (2023). R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/

Smith, D. E., Golden, A. P., Stange, A. W., Barker, E., Mroz, M., Barón, A. E., Ghosh, D., Maier, L., Cragle, D., & Newman, L. S. (2018). Clinical and laboratory factors contributing to uninterpretable beryllium lymphocyte proliferation tests (BeLPT). American Journal of Industrial Medicine, 61(7), 592–604. https://doi.org/10.1002/ajim.22842

Van Dyke, M. V., Martyny, J. W., Mroz, M. M., Silveira, L. J., Strand, M., Cragle, D. L., Tankersley, W. G., Wells, S. M., Newman, L. S., & Maier, L. A. (2011). Exposure and genetics increase risk of beryllium sensitisation and chronic beryllium disease in the nuclear weapons industry. Occupational and Environmental Medicine, 68(11), 842–848.https://doi.org/10.1136/oem.2010.064220

Watkins, J. P., Ellis, E. D., Girardi, D. J., Cragle, D. L., & Richter, B. S. (2014). Illness absences among beryllium sensitized workers. American Journal of Public Health, 104(11), e165–e169. https://doi.org/10.2105/AJPH.2014.302132

Worker Safety and Health Program, 10 CFR § 851.10 (2006). https://www.govinfo.gov/app/details/CFR-2020-title10-vol4/CFR-2020-title10-vol4-sec851-10