准东煤矿开采区土壤中天然放射性水平环境调查及评价

Yong-hu YANG,Li-feng KONG,Zong-shuo LI,Yong CHEN,Lin ZHANG,Xiao-han HU

Environmental Protection of Xinjiang（2017）

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Abstract

以高纯锗伽马能谱分析仪测量了准东煤矿开采区土壤中放射性核素238U、232Th、226Ra和柏K的比活度,测量值分别为24.53(13.82～36.71) Bq/kg、33.29(20.34～47.76) Bq/kg、48.7(27.98～72.64) Bq/kg和700.31(560.29～866.95) Bq/kg.将其同新疆及昌吉州的平均放射比活度进行了比较,并计算了距地面1 m高处空气中γ辐射吸收剂量率和年有效剂量率,最后对γ辐射外照射水平进行了评价.评价结果表明,准东煤矿开采区土壤中天然放射性水平处于正常范围内.

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