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报道珍珠岩及其制成品中放射性核素￣２２６Ｒａ、￣２３２Ｔｈ和￣４０Ｋ的比活度水平，并按国家建筑材料放射卫生防护标准对所测珍珠岩及其制成品的放射性含量进行了卫生学评价。
The specific activity levels of radionuclides ~ 226Ra, ~232Th and ~ 40K in perlite and its finished products were reported and the radioactive content of the perlite and its finished products tested was measured according to the national standards for the protection of building materials Hygiene evaluation.