Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments (2025)

Chapter: Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures

Previous Chapter: Appendix C: Committee Member and Staff Biographies
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Data File Study Name Cohort Size Races Sex Diseases Earliest Exposure
HFMULA02 Combined Mortality Data Study on Workers at the Hanford Site, Oak Ridge National Laboratory (ORNL), and Rocky Flats, Nuclear Weapons Plant 25,241 White Male Cancer mortality 1/1/1944
LAB22A01 Mortality Among Workers at LANL, Employed 1943–1980 26,328 Asian, Black, Hispanic, Native American, White, unknown Male, Female Cancer and noncancer mortality 1/1/1940
LAHSWA04 Analytic Health Study of Los Alamos, ZIA Company, and Manhattan Project Workers, 1994 7,466 White, unknown Male, Female Cancer and noncancer mortality 1/1/1944
LAMULW02 Combined LANL and Zia Company Working Data File Set 38,552 Black, White, other, unknown Male, female Cancer and noncancer mortality 1/1/1944
LAUPUA01 Follow-Up Study for the Manhattan Project Plutonium Workers 26 White Male Cancer and noncancer mortality 1/1/1944
MDFACW02 Working Data File Set for Mound Plant 6,881 Black, White, other, unknown Male, female, unknown Cancer and noncancer mortality 1/1/1941
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Latest Exposure Follow-Up Exposure Type Exposure Agent Covariate Sites
12/31/1981 12/31/1993 Ionizing radiation Plutonium-239, gamma and neutron General occupation category Hanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/1980 12/31/2017 Combined external and internal radiation Photons, neutrons, tritium, 238Pu, and 239Pu Education LANL
6/30/1990 6/30/1990 External and internal radiation Plutonium-238, Plutonium-239, gamma, tritium, and neutrons Ethnicity, education LANL (including Zia Company)
12/31/1990 12/31/1990 External and internal radiation External ionizing radiation, plutonium-238, plutonium-239, plutonium-242, tritium Education, state of birth, first job title, last job title, autopsy indicator, state of death, LANL
12/31/1945 12/31/1987 Aerosol Plutonium-239 No data available LANL
12/31/1979 12/31/1992 External and internal radiation monitoring Polonium, neutron, tritium, whole body dose Education, autopsy indicator, place of death, job title, job code, date of job start Mound Plant
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Data File Study Name Cohort Size Races Sex Diseases Earliest Exposure
MFCLCCA1 Study of Childhood Leukemia and Paternal Radiation Exposure among Communities near Hanford Site, Idaho Site, and Oak Ridge Site 1,269 Black, White, other, unknown Male, female Leukemia prevalence 1/1/1957
MFD94A01 Case-Control Study of Respiratory Cancer at Uranium Facilities at Tennessee Eastman Corporation and Y-12 facilities in Oak Ridge, Mallinckrodt Chemical Works in St. Louis and Weldon Springs, Missouri, and the Feed Materials Production Center in Fernald, Ohio 1,580 No data available No data available Respiratory cancer 1/1/1942
MFFEGWA1 Mortality Study Among Female Nuclear Weapons Workers at LANL, Zia Company, Rocky Flats, Hanford, Mound, Savannah River, Oak Ridge X-10, Y-12 and K-25, Fernald, Linde, and Pantex 65,984 Black, White Female Cancer and noncancer mortality 1/1/1943
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Latest Exposure Follow-Up Exposure Type Exposure Agent Covariate Sites
12/31/1991 Radiation monitoring Deep dose equivalent, tritium, neutrons, maximum permissible body burden Date of job start for parents, date of job end for parents, job code for parents, job description for parents, year of diagnosis, current diagnosis, previous cancer indicator, diagnosis age, previous cancer treatment Hanford Site, Idaho National Laboratory, Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12
12/31/1982 12/31/1982 No data available No data available Pay code, earliest tobacco code and date it, heaviest tobacco code and date of it, date of hire, beryllium worker indicator, earliest job title Fernald Site, Mallinckrodt Chemical Works, Oak Ridge Y-12, Oak Ridge Tennessee Eastman Company
12/31/1979 12/31/1994 External penetrating radiation No data available Facility, hire date Fernald Site, Hanford Site, Linde Plant, LANL, Mound Plant, Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12, Pantex Plant, Rocky Flats Plant, Savannah River Site, Zia Company
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Data File Study Name Cohort Size Races Sex Diseases Earliest Exposure
MFI93A01 International Agency for Research on Cancer Cohort Study of Nuclear Workers in the US, UK, and Canada, 1994 59,995 No data available Male, Female Cancer mortality 1/1/1944
MFI93A01 International Agency for Research on Cancer Cohort Study of Nuclear Workers in the US, UK, and Canada, 1994 59,995 No data available Male, female Cancer mortality 1/1/1944
MFMCHMA1 Cohort Mortality Study of Chemical Laboratory Workers at Department of Energy Nuclear Plants 6,157 White, non-White Male, female Cancer and noncancer mortality 1/1/1943
MFMCHMA1 Cohort Mortality Study of Chemical Laboratory Workers at Department of Energy Nuclear Plants 6,157 White, non-White Male, female Cancer and noncancer mortality 1/1/1943
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Latest Exposure Follow-Up Exposure Type Exposure Agent Covariate Sites
12/31/1986 External and internal radiation monitoring Gamma radiation, plutonium, neutrons Social class (based on education), strontium indicator, last social class, longest-held social class, duration of employment, neutron likelihood indicator, date of hire, date of termination, industrial worker indicator Hanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/1986 External and internal radiation monitoring Gamma radiation, plutonium, neutrons Social class (based on education), strontium indicator, last social class, longest-held social class, duration of employment, neutron likelihood indicator, date of hire, date of termination, industrial worker indicator Hanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/1998 Chemical exposure, ionizing radiation Chemical exposure, ionizing radiation Potential chemical exposure, job title, facility, hire date, duration of employment, processing area indicator Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12, Savannah River Site
12/31/1998 Chemical exposure, ionizing radiation Chemical exposure, ionizing radiation Potential chemical exposure, job title, facility, hire date, duration of employment, processing area indicator Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12, Savannah River Site
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Data File Study Name Cohort Size Races Sex Diseases Earliest Exposure
MFMM98A1 Epidemiologic Study of Multiple Myeloma at Hanford, LANL, ORNL, and Savannah River Sites 115,143 Black, White, other, unknown Male, female Cancer mortality 1/1/1943
MFMM98W1 Chemical and Physical Hazards Assessment Working Data for Hanford, LANL, ORNL, and Savannah River Sites 176 No data available No data available No data available
MFMM98W2 Detailed External Radiation Monitoring Working Data for Hanford, LANL, ORNL, and Savannah River Sites 0 No data available No data available No data available 1/1/1944
MFMM98W3 Detailed Internal Radiation Monitoring Working Data for Hanford, LANL, ORNL, and Savannah River Sites 214 No data available No data available No data available
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Latest Exposure Follow-Up Exposure Type Exposure Agent Covariate Sites
12/31/1990 External and internal radiation monitoring Neutrons, gamma radiation, X-Rays, high beta radiation, tritium, aromatic hydrocarbons, asbestos, beryllium, cadmium, ELF/EMF, halogenated hydrocarbons, mercury, microwave, nickel, lead, uranium, welding fumes, plutonium, strontium, tritium Facility, health classification change indicator, number of DOE facilities, education, military service, nonionizing radiation exposure indicator, paint exposure indicator, radiation treatment indicator, smoking history, years not smoking, farm indicator Hanford Site, LANL, Oak Ridge X-10, Savannah River Site
Chemical and physical hazards Many chemical agents No data available Hanford Site, LANL, Oak Ridge X-10, Savannah River Site
12/31/1990 External radiation monitoring Neutrons, tritium, gamma No data available Hanford Site, LANL, Oak Ridge X-10, Savannah River Site
Internal radiation monitoring Cobalt, cesium, fission products, beta, uranium, strontium, plutonium, potassium-40, manganese-54, sodium-22 Reason for bioassay Hanford Site, LANL, Oak Ridge X-10, Savannah River Site
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Data File Study Name Cohort Size Races Sex Diseases Earliest Exposure
ORK25A01 Case-Control Study of Nickel Workers at the Oak Ridge K-25 Facility 8,366 White Males Cancer and noncancer mortality 1/1/1948
ORK25A02 K-25 Retrospective Cohort Mortality Study 35,712 Black, White, other, unknown Male, female, unknown Cancer and noncancer mortality 1/1/1945
ORK25A02 K-25 Retrospective Cohort Mortality Study 35,712 Black, White, other, unknown Male, female, unknown Cancer and non-cancer mortality 1/1/1945
ORMULA01 Cohort Study of Welders at the Oak Ridge Site 1,062 White Males Cancer and non-cancer mortality 1/1/1943
PXFACW01 Pantex Plant Working Data File Set 7,425 Black, White, other, unknown Male, female, unknown Cancer and noncancer mortality 1/1/1951
ZARADA01 Zia Company Cohort Mortality Study, 1992 5,424 Black, Native American, Asian, White, unknown Male, female, unknown Cancer and noncancer mortality 1/1/1946

NOTES: DOE = Department of Energy; LANL = Los Alamos National Laboratory; ORNL = Oak Ridge National Laboratory; SAM = substitute alloy materials.

Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Latest Exposure Follow-Up Exposure Type Exposure Agent Covariate Sites
12/31/1953 12/31/1977 Nickel powder Nickel Smoking history, barrier worker indicator, hire date, first date of nickel department work Oak Ridge K-25 (Gaseous Diffusion Plant)
12/31/1984 1/1/1990 No data available Soluble uranium, external radiation, insoluble uranium oxides, uranium hexafluoride, hydrofluoric acid First pay code, last pay code, number of DOE facilities, SAM laboratory employment indicator Oak Ridge K-25 (Gaseous Diffusion Plant)
12/31/1984 1/1/1990 No data available Soluble uranium, external radiation, insoluble uranium oxides, uranium hexafluoride, hydrofluoric acid First pay code, last pay code, number of DOE facilities, SAM laboratory employment indicator Oak Ridge K-25 (Gaseous Diffusion Plant)
12/31/1982 12/31/1974 Nickel oxides Nickel oxides Hire date, year of birth Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12
12/31/1981 12/31/1993 External and internal radiation monitoring Gamma, neutron, nuclide Education, first job title, last job title, autopsy indicator, death location Pantex Plant
12/31/1986 12/31/1991 External and internal radiation monitoring Gamma, plutonium-238, plutonium-239 Ethnicity Zia Company (Los Alamos)
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.

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Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
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Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 236
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 237
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 238
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 239
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 240
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 241
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 242
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 243
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 244
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
Page 245
Suggested Citation: "Appendix D: Selected Epidemiologic Studies of Radiological and Chemical Exposures." National Academies of Sciences, Engineering, and Medicine. 2025. Evaluation of Manhattan Project Records for Veteran Health and Exposure Assessments. Washington, DC: The National Academies Press. doi: 10.17226/28585.
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