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Environmental Radiological Impact of Some Portuguese Uranium Mines

1988; Oxford University Press; Volume: 24; Issue: 1-4 Linguagem: Inglês

10.1093/oxfordjournals.rpd.a080295

1742-3406

J.P. Galvão, A.O. de Bettencourt, Margarida Teixeira, M.D.T. Elias,

Radiation Dose and Imaging

Abstract An environmental radiological surveillance programme has been in progress around the most significant Portuguese uranium mines, from 1976 to 1983. A short description is given of the mines of Urgeirica (including uranium milling), Freixiosa, Pinhal de Souto and Bica. The results of the surveillance programme developed in the vicinity of these facilities are presented and the identified critical pathways are discussed. One of these pathways is the consumption of cabbage, which is an important component in the diet of the Portuguese population. The exposure of the critical groups, due to the intake of 226Ra through the diet, calculated from the results of this monitoring programme, range from 0.02 to 1.5 mSv.y-1, for the different mines under study.