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Autor:
Heli Milvek, Siim Nirgi, Krista Saarik, Krista Täht-Kok, Mark Karimov, Valter Petersell, Margus Raha
Publikováno v:
Journal of Environmental Radioactivity. 166:235-241
Several investigations in Estonia during 1996¬-1999 have shown that permissible level (200 Bq/m3) of radon (222Rn) in indoor air is exceeded in 33% of the inspected dwellings. This makes Estonia one of the five countries with highest radon risk in E