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Title: Studies of transport pathways of Th, rare earths, Ra-228, and Ra-226 from soil to plants and farm animals. Progress report, April 1, 1985-February 28, 1986

Technical Report ·
OSTI ID:5888186

The field study is to assess the soil-to-plant and soil-to-animal concentration factors of the naturally occurring radionuclides /sup 226/Ra, /sup 228/Ra, /sup 232/Th, /sup 230/Th, and /sup 228/Th, as well as of the light rare earth elements (REE), La, Ce and Nd. Farms situated near the center of a deeply weathered alkalic intrusive known as the Pocos de Caldas (PC) plateau were selected for study because of their proximity (i.e., within a few kilometers) to what may be the largest single near-surface deposit of Th (approx.30,000 tonnes) and REE's (>100,000 tonnes) situated near the summit of a hill (the Morro do Ferro (MF)). An ancillary field study is being conducted in Orange County, New York, where a local cattleman has permitted sampling members of the herd as well as soil and feeds which are all grown on the premises. Vegetable samples and soil have also been analyzed from five additional farms in Orange County, NY. 64 refs., 25 figs., 45 tabs.

Research Organization:
New York Univ., NY (USA). Inst. of Environmental Medicine
DOE Contract Number:
AC02-83ER60134
OSTI ID:
5888186
Report Number(s):
DOE/ER/60134-2; ON: DE86010235
Resource Relation:
Other Information: Microfiche only, copy does not permit paper copy reproduction
Country of Publication:
United States
Language:
English