江西省修水县石煤矿区放射性环境调查与评价

发布时间：2018-04-16 23:31

  本文选题：石煤 + 辐射环境　； 参考：《辐射防护》2017年06期

【摘要】：石煤的开发和综合利用对环境有可能造成一定的污染,其中影响环境放射性水平增高和居民受照剂量增加等辐射方面的污染问题较为敏感以及突出。本次研究对江西省主要石煤资源区——修水县一处典型石煤矿的放射性环境进行调查,通过多介质采样分析以及现场监测γ辐射空气吸收剂量率和地面γ能谱相结合,综合研究该区放射性核素分布与环境γ剂量率之间的关系,利用公式估算石煤矿区居民辐射剂量并评价其环境辐射情况。结果表明,调查范围内的石煤矿区地面γ辐射空气吸收剂量率的平均值达到了662 n Gy/h,该处铀矿主要形式为碳硅泥岩型,区内石煤、石煤渣、土壤、水样放射性核素测量值都高于省内相应介质的本底值,石煤矿的开采需接受专业的监管。
[Abstract]:The exploitation and comprehensive utilization of stone coal may cause certain pollution to the environment, among which the radiation pollution problems such as the increase of environmental radioactivity level and the increase of radiation dose to residents are more sensitive and prominent.In this study, the radioactive environment of a typical stone coal mine in Xiushui County, a major stone coal resource area in Jiangxi Province, was investigated. By means of multi-medium sampling analysis and on-site monitoring of 纬 -radiation air absorption dose rate and surface 纬 energy spectrum,The relationship between the distribution of radionuclides and the environmental 纬 dose rate in this area is studied synthetically. The radiation dose of residents in the coal mining area is estimated by the formula and the environmental radiation is evaluated.The results show that the average absorbed dose rate of 纬 -radiation air in the stony coal mining area is 662 n Gy / h, where the uranium deposit is mainly of carbon-silicon mudstone type, stone coal, stone cinder, soil, etc.The measured values of radionuclides in water samples are higher than the background values of the corresponding media in the province, and the mining of stone coal mines should be subject to professional supervision.
【作者单位】： 江西核工业地质局测试研究中心;南京地质调查中心;
【基金】：中国地质调查项目(12120115013301)
【分类号】：X591;X82
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本文编号：1761082