Abstract
Tritium levels in precipitation, atmospheric water vapour and tap water were studied in various areas in the South of Paris from 1972 to 1980. Precipitation concentrations were found to exceed the world levels usually observed due to nuclear tests. Significant monthly variations were also observed, which cannot result from the same origin. Tap water levels were constant, the annual concentrations averaged 500 pCi.1−1, which means that the global environmental impact of these local concentrations is negligible. The exposure dose to man is very low (5.10−4 mGy.y−1) and represents only 1/1000 of the dose from terrestrial radiation.
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Patti, F., Bourgeon, P. & Jeanmaire, L. Concentration de tritium dans l'eau de pluie, l'eau potable et la vapeur d'eau atmospherique au sud de la region parisienne. J. Radioanal. Chem. 77, 39–48 (1983). https://doi.org/10.1007/BF02525351
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DOI: https://doi.org/10.1007/BF02525351