Abstract
A RECENT evaluation of radiological data gathered by the U.S. Atomic Energy Commission's Health and Safety Laboratory includes a statement that the concentration of fission products in commercial milk is essentially independent of total rainfall1,2. However, the precipitation values were presented as arbitrary ranges and the landscape units used were not strictly biological regions. The purpose of this communication is to show that if radiological data from the same source are arranged according to natural landscape units a relationship between phytoclimatic zones and the cæsium-137 content of milk is indicated.
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RICKARD, W., WIGGINS, A. & FREMSTAD, J. Cæsium-137 in Dried Milk Products in Relation to Phytoclimatic Zones. Nature 197, 197–198 (1963). https://doi.org/10.1038/197197b0
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DOI: https://doi.org/10.1038/197197b0
