A survey of natural radioactivity level in environment near the urarium mine in Shanxi province were conducted. The ab- sorbed dose rate from γ radiation in the area was measurmented. The contents of radionuclindes in the sources of drinking water and river, soil and vegetable samples were determined. The radon concentrations in indoor and outdoor air were aslo determined. The results indicated that the natural radioactivity levels in the area were hihger than those of the average levels in the provi- cial and nationwide, but the majority of the area was within the range of normal natrual background radiation level. The radon con- centration was very high in the workshop in grotton and it should be taken measures to reduce the harm of radon and its decay prod- ucts of the workers.

饮用天然矿泉水中天然放射性水平一般都较低。１９９５年８月，我省发现了一处迄今为止天然放射性水平最高的饮用天然矿泉水源点。该水样中硒、锌和锶均达到了国家标准ＧＢ８５３７－９５《饮用天然矿泉水》中规定的相应界限值，仅由于水样中总β活度超出了该标准规定的限...