摘要
本文报道了1976年以来,我省西、北、东江及放射性矿开采,冶炼地区的河水、泉水、井水、水库水的检测结果,α比活度为0.18～1184Bq/L,天然铀、天然钍浓度为0.1～3400μg/L,镭浓度为0.018～777Bq/L。表明我省绝大多数地区露天水源水还未受到明显的放射性污染,其浓度与国家标准中“饮用水”天然铀、钍、镭的限制浓度比,均低约2个数量级。但局部地区受到的污染是严重的。
The contents of natural uranium, natural thorium, radium and total α-radioactive level in surface water sources from West river, North river, East river and other locations with radioactive mining and refinery in Gu angdong province were reported. The investigation had been done since 1976 and more than one thousand of water samples from various sources including rivers, springs and wells were analyzed. It was shown that the total α-radioactive level in waters ranged from 0.018 to 1184Bq/L, the concentrations of natural uranium and thorium ranged from 0.1 to 3400μg/L, and that of radium ranged from 0.018 to 777Bq/L.The results showed that all the surface water sources investigated in Guangdong have not yet been contaminated obviously. The concentrations of natural uranium, thorium and radium in the waters were two orders less than that of the natural standard for drinking water. However, water sources in some locations appeared to be seriously contaminated.
出处
《职业医学》
1989年第1期12-14,64,共3页
China Occupational Medicine
关键词
露天水源
放射性污染
water sourceson open, radioactive contamination
