Iodine species in reactor effluents and in the environment. Final report
The air-to-vegetation transfer velocity, an important parameter in evaluating dose to man from I-131 in the environment, has been used to establish an environmental reactivity ranking for the radioiodine species. In these terms, the hierarchy of reactivities is I/sub 2/ > particulate > HOI > organic iodides. Previous measurements showing that the least reactive forms, HOI and organic iodides, comprise 50% or more of the total I-131 release from boiling water reactors were confirmed in this study. Measurements of the chemical forms of I-131 and stable iodine in the environment were made using radioiodine species sampler media and a stable iodine species sampler. The compound HOI-131 was observed in the environment 1.5 km from the plant release point. Organic forms were prevalent in environmental samples. Organic iodide residence times calculated using the measured variability of ambient concentrations are > 80 days.
- Research Organization:
- Science Applications, Inc., Rockville, MD (USA). Nuclear Environmental Services Div.
- OSTI ID:
- 5553413
- Report Number(s):
- EPRI-NP-1269
- Country of Publication:
- United States
- Language:
- English
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HALOGENATED ALIPHATIC HYDROCARBONS
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METHYL IODIDE
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NUCLEAR FACILITIES
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ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
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