Natural iodine and iodine-129 in mammalian thyroids and environmental samples taken from locations in the United States
From symposium on enviromnental surveillance around nuclear installation; Warsaw, Poland (5 Nov 1973). Bovine and other mammalian thyroids, air, precipitation, water, grass, and milk samples from selected locations were analyzed for their natural iodine and iodine-129 content. Particle filters and activated charcoal beds were used to collect the particulate and gaseous iodine fractions from the air. Anion exchange was used for the separation of iodine from liquid samples. Cumbustion methods were used for iodine separation from solid samples, anlon exchange resins, and air filters. Iodine-129 and natural iodine concentrations were determined by neutron activation analysis with a detection limit of about 10/sup 8/ atoms of iodine-129 per sample. Analytical results of both /sup 129/I concentrations and ratios of atoms of /sup 129/I per atom of /sup 127/I for these samples are summarized. The small radiation doses to human thyroids projected from these low /sup 129/I concentrations are also discussed. (auth)
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, Wash. (USA)
- NSA Number:
- NSA-29-005099
- OSTI ID:
- 4406491
- Report Number(s):
- BNWL-SA--4694; CONF-731117--1; SM--180-34
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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*EARTH ATMOSPHERE- - RADIATION MONITORING
*GRASS-- RADIATION MONITORING
*IODINE 129-- RADIATION MONITORING
*IODINE-- MONITORING
*MILK-- RADIATION MONITORING
*THYROID-- RADIATION MONITORING
CATTLE
ENVIRONMENT
IODINE 127
MAN
N44300* --Environmental & Earth Sciences--Radioactivity Monitoring & Transport
SWINE
USA