Laboratory measurements of parameters affecting wet deposition of methyl iodide
The transfer of gaseous methyl iodide (CH/sub 3/I) to raindrops and the initial retention by vegetation of CH/sub 3/I in raindrops have been studied in a laboratory experimental program. The measured air-to-drop transfer parameters and initial retention factors both affect the wet deposition of methyl iodide onto vegetation. No large effects on the air-to-drop transfer due to methyl iodide concentration, temperature, acidity, or rain type were observed. Differences between laboratory measurements and theoretical values of the mass transfer coefficient were found. Pasture grass, lettuce, and alfalfa were used to study the initial retention of methyl iodide by vegetation. Only a small fraction of the incident CH/sub 3/I in raindrops was held by any of the three vegetation types.
- Research Organization:
- Westinghouse Idaho Nuclear Co., Inc., Idaho Falls (USA); Science Applications, Inc., Idaho Falls, ID (USA)
- DOE Contract Number:
- AC07-84ID12435
- OSTI ID:
- 6308808
- Report Number(s):
- NUREG/CR-4014; WINCO-1023; ON: TI85003688
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
METHYL IODIDE
BIOLOGICAL ACCUMULATION
WASHOUT
ALFALFA
BENCH-SCALE EXPERIMENTS
EXPERIMENTAL DATA
GRASS
IODINE 131
PRECIPITATION SCAVENGING
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
INTERMEDIATE MASS NUCLEI
IODINATED ALIPHATIC HYDROCARBONS
IODINE ISOTOPES
ISOTOPES
LEGUMINOSAE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
PLANTS
RADIOISOTOPES
SEPARATION PROCESSES
500300* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)