Rapid estimation of environmental radioactivity surrounding Xiangshan uranium deposits, Jiangxi province, Eastern China
Rapid estimation of environmental radioactivity surrounding Xiangshan uranium deposits, Jiangxi province, Eastern China
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江西象山铀矿周边环境放射性快速估算
DOI：
10.2478/nuka-2018-0014
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发表时间：
2018-12
期刊：
影响因子：
0.7
通讯作者：
Ting Li
中科院分区：
文献类型：
--
作者：
Nan Gan;Kuang Cen;Rong Ye;Ting Li
摘要2017-2018年，在江西省象山铀存款及周边地区的14个村和1个镇进行了地面γ剂量率、室内和水中氡浓度以及土壤放射性核素比活度的调查，使用闪烁体剂量计，一个电离室和一个高纯锗伽马能谱仪，研究这些地方整治后的辐射状况。在矿区附近的一个村庄发现了一个放射性热点，土壤中238 U、226 Ra、232 Th和137 Cs的比活度分别高达1433 ± 76 Bq/kg、1210 ± 62 Bq/kg、236 ± 13 Bq/kg和17 ± 1.1Bq/kg。废石堆上的剂量率约为2423 nGy/h。在铀矿开采点附近的一个村庄，大约50%的房屋的氡浓度超过160 Bq/m3。室内氡浓度与室外γ剂量率呈显著正相关（R2 = 0.7876）。在一个为居民提供自来水的上升泉样品中观察到氡浓度异常，高达127.1 Bq/l。4个自来水样品和5个井水样品中的3个超过了我国饮用水氡浓度限值（11.1Bq/l）。γ剂量率数据的平均年有效剂量为0.86 mSv/y，室内氡为1.13 mSv/y。研究表明，香山铀矿周围存在一定的放射性污染场所。当地室外剂量率平均值可用于估计当地室内氡浓度。
Abstract The surveys of terrestrial gamma dose rate, radon concentration indoor and in water and specific activity of radionuclides of soil were carried out in 14 villages and a town in Xiangshan uranium deposit and surrounding area, Jiangxi province, Eastern China, in 2017-2018, using a scintillator dosemeter, an ionization chamber and a high-purity germanium gamma spectrometer to study radiation status in these places after remediation. A radioactive hot spot was discovered in a village near the mining office, where specific activity of 238U, 226Ra, 232Th and 137Cs of soil was as high as 1433 ± 76 Bq/kg, 1210 ± 62 Bq/kg, 236 ± 13 Bq/kg and 17 ± 1.1 Bq/kg, respectively. The dose rate on a waste rock heap was about 2423 nGy/h. Approximately 50% of the houses in a village near the uranium mining site had radon concentrations that exceeded 160 Bq/m3. There was a significant positive correlation between indoor radon concentration and outdoor gamma dose rate (R2 = 0.7876). The abnormal radon concentration was observed in a rising spring sample providing residents with tap water up to 127.1 Bq/l. Four tap water samples and three of five well water samples exceeded the limit of radon concentration of drinking water in China (11.1 Bq/l). The mean annual effective doses from gamma dose rate data were 0.86 mSv/y and 1.13 mSv/y for indoor radon. The study shows that there are some radioactively contaminated places surrounding the Xiangshan uranium mine. The local outdoor dose rate averages may be used to estimate local indoor radon concentrations.
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影响因子：
9.6
作者：
Xu Lechang;Wang Yan-xin;Lu Junwen;Lu Xueshi;Liu Yaochi;Liu Xiaoyang
通讯作者：
Xu Lechang;Wang Yan-xin;Lu Junwen;Lu Xueshi;Liu Yaochi;Liu Xiaoyang
影响因子：
2.3
作者：
O. Lind;P. Stegnar;B. Tolongutov;B. O. Rosseland;G. Strømman;B. Uralbekov;A. Usubalieva;A. Solomatina-A
通讯作者：
O. Lind;P. Stegnar;B. Tolongutov;B. O. Rosseland;G. Strømman;B. Uralbekov;A. Usubalieva;A. Solomatina-A
DOI：
10.3760/cma.j.issn.0254-5098.2003.06.032
发表时间：
2003-11
期刊：
--
影响因子：
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作者：
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通讯作者：
尚兵;贺青华;王作元;朱昌寿
影响因子：
1
作者：
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通讯作者：
Ting Li;Nanping Wang;Shijun Li
DOI：
--
发表时间：
2004
期刊：
--
影响因子：
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作者：
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通讯作者：
Sun Zhan-xue