Preliminary investigation of radon concentration in surface water and drinking water in Shenzhen City, South China.
Preliminary investigation of radon concentration in surface water and drinking water in Shenzhen City, South China.
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DOI：
10.1093/rpd/ncv207
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发表时间：
2015-11
影响因子：
1
通讯作者：
Ting Li;Nanping Wang;Shijun Li
中科院分区：
文献类型：
--
作者：
Ting Li;Nanping Wang;Shijun Li
为了解2013年广东省深圳市不同类型水源中溶解性氡（(222)Rn）浓度水平和饮用水氡风险评估，采用便携式除气系统和电离室AlphaGUARD （PQ2000）对地表水和饮用水中的氡进行了调查。测量结果表明，泉水、地表水、大型和小型公共供水中氡（(222)Rn）浓度的算术平均值±标准差分别为52.05±6.64、0.29±0.26、0.15±0.23和0.37±0.42 kBq m（-3）。仅有2个山区水样氡浓度超过11.10 kBq m(-3)，超过中国国家标准（GB5749-2006）规定的饮用水氡浓度限值。还计算了饮用水中氡的年有效剂量。调查结果表明，南昌市饮用水中不存在氡的危害。
A radon survey in surface water and drinking water was conducted using a portable degassing system associated with an ionisation chamber AlphaGUARD (PQ2000) for understanding levels of dissolved radon ((222)Rn) concentration in different types of water sources and risk assessment of radon in drinking water in Shenzhen City (SC) with a population of 10 628 900 in 2013, Guangdong Province of China. The measurements show that arithmetic means ± standard deviations of radon ((222)Rn) concentration are 52.05 ± 6.64, 0.29 ± 0.26, 0.15 ± 0.23 and 0.37 ± 0.42 kBq m(-3) in spring water, surface water, large and small public water supplies, respectively. Only radon concentrations of two water samples collected in mountainous areas are more than 11.10 kBq m(-3), exceeding the limit of radon concentration in drinking water stipulated by the national standard of China (GB5749-2006). The annual effective doses due to radon in drinking water were also calculated. The investigation suggests that there are no risks caused by radon in the drinking water in SC.