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Strontium-90 and Cesium-137 Levels in the Milks of Some Arctic Species

Macdonald College of McGill University, Macdonald College P.O., P. Que., Canada and Radiation Protection Division, Department of National Health and Welfare, Ottawa

ABSTRACT

⁹⁰Sr and ¹³⁷Cs were determined in the milks of the following mammals: Rocky Mountain bighorn sheep, mountain goat, caribou, husky, beluga whale, fin whale, polar bear and human (Eskimo). The ⁹⁰Sr values ranged between 89.8 pCi/g ash for caribou milk to 0.1 pCi/g ash for fin whale milk. The ¹³⁷Cs concentrations ranged between 510.9 pCi/g ash for the milk of inland Eskimos to 0.9 pCi/g ash for the milk of mountain goat.