Stranden E
Health Phys. 1985 Apr;48(4):415-20. doi: 10.1097/00004032-198504000-00003.
The radiological impact of former mining activities in the Fen area in southern Norway has been assessed. The area is known to have enhanced concentrations of Th. A recent epidemiological study suggested a significant increment of lung cancer among the former miners, and the doses to the miners have been assessed. The main contributor to the effective dose equivalent in one of the mines was inhaled 220Rn progeny. Water in drilled wells and in nearby lakes has been analysed for 220Rn and Ra. Uranium and Th analyses were performed on mine and lake water. The mining activity does not seem to have contaminated drinking water significantly. The tailings from Nb production has enriched Ra and Th concentrations. The tailings and the possible use of waste rock from the mining are probably the most important environmental results of the mining activities.
挪威南部芬地区以前采矿活动的放射性影响已得到评估。已知该地区钍的浓度有所增加。最近的一项流行病学研究表明， former miners中肺癌显著增加，并且已对矿工所受剂量进行了评估。其中一个矿井中有效剂量当量的主要贡献者是吸入的220Rn子体。已对钻井和附近湖泊中的水进行了220Rn和镭的分析。对矿井水和湖水进行了铀和钍分析。采矿活动似乎并未对饮用水造成显著污染。铌生产产生的尾矿中镭和钍的浓度有所富集。尾矿以及采矿废石的可能用途可能是采矿活动最重要的环境后果。
