【摘要】 本文报道了自贡市井矿盐开发所致的辐射水平。井矿盐开发的主要废弃物——卤泥中²³⁸U,²²⁶Ra,²³²Th的天然放射性核素比活度比四川省土壤中相应核素平均值高1—2个数量级,且造成卤泥堆积场和局部生产环境陆地γ辐射剂量率高出自贡市环境陆地γ辐射平均值的2.0～48.3倍,最主超过165倍。部份卤泥和盐厂附近江河排放口底泥中天然放射性废物标准。更多还原

【Abstract】 This paper studies radiation levels causing by the exploitation of well rock salt in Zigong, Sichuan Province. Radioactivity strength of ²³⁶U,²²⁶Ra, ²³²Th in the bittern sludge, which is the main waste in the exploitation of well rock sait, is 1～2 orders higher than the mean value of soil in Sichuan Province. At the deposits of bittern sludge and the partly production sites, the gamma radiation dose is 2 to 48.3 times, even over 165 times higher than the natural radiation dose in Zigong. In the part of the bittern sludge and sediment in the river rear the wastewater outlets of saltworks, gamma radiation dose has reached or approached the standard of radiation Waste.更多还原