Specific Activity of210Pb in the Environment
- 20 January 1974
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 3 (4) , 307-316
- https://doi.org/10.1080/03067317408071091
Abstract
A review of data on the specific activity of 210Pb (pCi 210Pb/mg stable Pb) in the environment is presented. Experimental results on aerosol, plant, animal and human samples from Finland are reported. Large variations (18-2450 pCi/mg Pb) were observed for aerosol samples taken from various locations and under different meteorological conditions. Results for the biological samples revealed a much narrower range. A considerable decrease of specific activity was observed along the food chain plant—animal—man, thus indicating contamination of the food chain by technological (low-activity) lead. Arctic values of specific activity were observed to be generally higher than “normal” values. Human samples from southern Finland contained about 20pCi 210Pb/mgPb. Possibilities of utilizing specific activity measurements in lead pollution studies and in elucidating the origin of stable lead in the human diet are discussed.Keywords
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