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 FileStudy NameCohort SizeRacesSexDiseasesEarliest Exposure
HFMULA02Combined Mortality Data Study on Workers at the Hanford Site, Oak Ridge National Laboratory (ORNL), and Rocky Flats, Nuclear Weapons Plant25,241WhiteMaleCancer mortality1/1/1944
LAB22A01Mortality Among Workers at LANL, Employed 1943–198026,328Asian, Black, Hispanic, Native American, White, unknownMale, FemaleCancer and noncancer mortality1/1/1940
LAHSWA04Analytic Health Study of Los Alamos, ZIA Company, and Manhattan Project Workers, 19947,466White, unknownMale, FemaleCancer and noncancer mortality1/1/1944
LAMULW02Combined LANL and Zia Company Working Data File Set38,552Black, White, other, unknownMale, femaleCancer and noncancer mortality1/1/1944
LAUPUA01Follow-Up Study for the Manhattan Project Plutonium Workers26WhiteMaleCancer and noncancer mortality1/1/1944
MDFACW02Working Data File Set for Mound Plant6,881Black, White, other, unknownMale, female, unknownCancer and noncancer mortality1/1/1941
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 ExposureFollow-UpExposure TypeExposure AgentCovariateSites
12/31/198112/31/1993Ionizing radiationPlutonium-239, gamma and neutronGeneral occupation categoryHanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/198012/31/2017Combined external and internal radiationPhotons, neutrons, tritium, 238Pu, and 239PuEducationLANL
6/30/19906/30/1990External and internal radiationPlutonium-238, Plutonium-239, gamma, tritium, and neutronsEthnicity, educationLANL (including Zia Company)
12/31/199012/31/1990External and internal radiationExternal ionizing radiation, plutonium-238, plutonium-239, plutonium-242, tritiumEducation, state of birth, first job title, last job title, autopsy indicator, state of death,LANL
12/31/194512/31/1987AerosolPlutonium-239No data availableLANL
12/31/197912/31/1992External and internal radiation monitoringPolonium, neutron, tritium, whole body doseEducation, autopsy indicator, place of death, job title, job code, date of job startMound 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 FileStudy NameCohort SizeRacesSexDiseasesEarliest Exposure
MFCLCCA1Study of Childhood Leukemia and Paternal Radiation Exposure among Communities near Hanford Site, Idaho Site, and Oak Ridge Site1,269Black, White, other, unknownMale, femaleLeukemia prevalence1/1/1957
MFD94A01Case-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, Ohio1,580No data availableNo data availableRespiratory cancer1/1/1942
MFFEGWA1Mortality 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 Pantex65,984Black, WhiteFemaleCancer and noncancer mortality1/1/1943
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 ExposureFollow-UpExposure TypeExposure AgentCovariateSites
12/31/1991Radiation monitoringDeep dose equivalent, tritium, neutrons, maximum permissible body burdenDate 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 treatmentHanford Site, Idaho National Laboratory, Oak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12
12/31/198212/31/1982No data availableNo data availablePay code, earliest tobacco code and date it, heaviest tobacco code and date of it, date of hire, beryllium worker indicator, earliest job titleFernald Site, Mallinckrodt Chemical Works, Oak Ridge Y-12, Oak Ridge Tennessee Eastman Company
12/31/197912/31/1994External penetrating radiationNo data availableFacility, hire dateFernald 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 FileStudy NameCohort SizeRacesSexDiseasesEarliest Exposure
MFI93A01International Agency for Research on Cancer Cohort Study of Nuclear Workers in the US, UK, and Canada, 199459,995No data availableMale, FemaleCancer mortality1/1/1944
MFI93A01International Agency for Research on Cancer Cohort Study of Nuclear Workers in the US, UK, and Canada, 199459,995No data availableMale, femaleCancer mortality1/1/1944
MFMCHMA1Cohort Mortality Study of Chemical Laboratory Workers at Department of Energy Nuclear Plants6,157White, non-WhiteMale, femaleCancer and noncancer mortality1/1/1943
MFMCHMA1Cohort Mortality Study of Chemical Laboratory Workers at Department of Energy Nuclear Plants6,157White, non-WhiteMale, femaleCancer and noncancer mortality1/1/1943
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 ExposureFollow-UpExposure TypeExposure AgentCovariateSites
12/31/1986External and internal radiation monitoringGamma radiation, plutonium, neutronsSocial 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 indicatorHanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/1986External and internal radiation monitoringGamma radiation, plutonium, neutronsSocial 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 indicatorHanford Site, Oak Ridge X-10, Rocky Flats Plant
12/31/1998Chemical exposure, ionizing radiationChemical exposure, ionizing radiationPotential chemical exposure, job title, facility, hire date, duration of employment, processing area indicatorOak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12, Savannah River Site
12/31/1998Chemical exposure, ionizing radiationChemical exposure, ionizing radiationPotential chemical exposure, job title, facility, hire date, duration of employment, processing area indicatorOak 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 FileStudy NameCohort SizeRacesSexDiseasesEarliest Exposure
MFMM98A1Epidemiologic Study of Multiple Myeloma at Hanford, LANL, ORNL, and Savannah River Sites115,143Black, White, other, unknownMale, femaleCancer mortality1/1/1943
MFMM98W1Chemical and Physical Hazards Assessment Working Data for Hanford, LANL, ORNL, and Savannah River Sites176No data availableNo data availableNo data available
MFMM98W2Detailed External Radiation Monitoring Working Data for Hanford, LANL, ORNL, and Savannah River Sites0No data availableNo data availableNo data available1/1/1944
MFMM98W3Detailed Internal Radiation Monitoring Working Data for Hanford, LANL, ORNL, and Savannah River Sites214No data availableNo data availableNo 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 ExposureFollow-UpExposure TypeExposure AgentCovariateSites
12/31/1990External and internal radiation monitoringNeutrons, 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, tritiumFacility, 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 indicatorHanford Site, LANL, Oak Ridge X-10, Savannah River Site
Chemical and physical hazardsMany chemical agentsNo data availableHanford Site, LANL, Oak Ridge X-10, Savannah River Site
12/31/1990External radiation monitoringNeutrons, tritium, gammaNo data availableHanford Site, LANL, Oak Ridge X-10, Savannah River Site
Internal radiation monitoringCobalt, cesium, fission products, beta, uranium, strontium, plutonium, potassium-40, manganese-54, sodium-22Reason for bioassayHanford 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 FileStudy NameCohort SizeRacesSexDiseasesEarliest Exposure
ORK25A01Case-Control Study of Nickel Workers at the Oak Ridge K-25 Facility8,366WhiteMalesCancer and noncancer mortality1/1/1948
ORK25A02K-25 Retrospective Cohort Mortality Study35,712Black, White, other, unknownMale, female, unknownCancer and noncancer mortality1/1/1945
ORK25A02K-25 Retrospective Cohort Mortality Study35,712Black, White, other, unknownMale, female, unknownCancer and non-cancer mortality1/1/1945
ORMULA01Cohort Study of Welders at the Oak Ridge Site1,062WhiteMalesCancer and non-cancer mortality1/1/1943
PXFACW01Pantex Plant Working Data File Set7,425Black, White, other, unknownMale, female, unknownCancer and noncancer mortality1/1/1951
ZARADA01Zia Company Cohort Mortality Study, 19925,424Black, Native American, Asian, White, unknownMale, female, unknownCancer and noncancer mortality1/1/1946

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 ExposureFollow-UpExposure TypeExposure AgentCovariateSites
12/31/195312/31/1977Nickel powderNickelSmoking history, barrier worker indicator, hire date, first date of nickel department workOak Ridge K-25 (Gaseous Diffusion Plant)
12/31/19841/1/1990No data availableSoluble uranium, external radiation, insoluble uranium oxides, uranium hexafluoride, hydrofluoric acidFirst pay code, last pay code, number of DOE facilities, SAM laboratory employment indicatorOak Ridge K-25 (Gaseous Diffusion Plant)
12/31/19841/1/1990No data availableSoluble uranium, external radiation, insoluble uranium oxides, uranium hexafluoride, hydrofluoric acidFirst pay code, last pay code, number of DOE facilities, SAM laboratory employment indicatorOak Ridge K-25 (Gaseous Diffusion Plant)
12/31/198212/31/1974Nickel oxidesNickel oxidesHire date, year of birthOak Ridge K-25 (Gaseous Diffusion Plant), Oak Ridge X-10, Oak Ridge Y-12
12/31/198112/31/1993External and internal radiation monitoringGamma, neutron, nuclideEducation, first job title, last job title, autopsy indicator, death locationPantex Plant
12/31/198612/31/1991External and internal radiation monitoringGamma, plutonium-238, plutonium-239EthnicityZia 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.
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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.
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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 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.
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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 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.
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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.
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