Air pathway report: Phase I of the Hanford Environmental Dose Reconstruction Project
Phase 1 of the air-pathway portion of the Hanford Environmental Dose Reconstruction (HEDR) Project sought to determine whether dose estimates could be calculated for populations in the 10 counties nearest the Hanford Site from atmospheric releases of iodine-131 from the site from 1944--1947. Phase 1 demonstrated the following: HEDR-calculated source-term estimates of iodine-131 releases to the atmosphere were within 20% of previously published estimates; calculated vegetation concentrations of iodine-131 agree well with previously published measurements; the highest of the Phase 1 preliminary dose estimates to the thyroid are consistent with independent, previously published estimates of doses to maximally exposed individuals; and, relatively crude, previously published measurements of thyroid burdens for Hanford workers are in the range of average burdens that the HEDR model estimated for similar reference individuals'' for the period 1944--1947. Preliminary median dose estimates summed over the year 1945--1947 for the primary pathway, air-pasture-cow-milk-thyroid, ranged from low median values of 0.006 rad for upwind adults who obtained milk from backyard cows not on pasture to high median values of 68.0 rad for downwind infants who drank milk from pasture-fed cows. Extremes of the estimated range are a low of essentially zero to upwind adults and a high of almost 3000 rem to downwind infants. 37 refs., 37 figs., 2 tabs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5528265
- Report Number(s):
- PNL-7412-HEDR-Rev.1; ON: DE91016548
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGE GROUPS
AIR
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
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DOSE EQUIVALENTS
DOSE RATES
DOSES
ENDOCRINE GLANDS
ENVIRONMENTAL EXPOSURE PATHWAY
ENVIRONMENTAL TRANSPORT
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FOOD
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GASES
GLANDS
HANFORD RESERVATION
HAZARDS
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INTERMEDIATE MASS NUCLEI
IODINE 131
IODINE ISOTOPES
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MASS TRANSFER
MATERIALS
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MONITORING
NATIONAL ORGANIZATIONS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
POPULATIONS
RADIATION DOSES
RADIATION HAZARDS
RADIATION MONITORING
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SOURCE TERMS
THYROID
US DOE
US ERDA
US ORGANIZATIONS
WASTES