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在1978年全国海产食品放射性调查中,发现胶州湾蛤蜊中137Cs含量较其它海区高出约两个数量级。137Cs半衰期长(30年),易积累在肌肉等软组织中,不易自人体中排出,故对人体健康危害较大。所以上述异常现象引起有关部门的关注。为了验证这一现象,我们于1981～1982年对青岛沿海水质、底质和海生物样品中137Cs含量做了较为全面的调查。结果表明,青岛沿海生物体中137Cs的含量同其它海区一样处于低水平,即没有被显著污染。
In 1978, the national seafood radioactivity survey found that the 137Cs content of Jiaozhou Bay clams was about two orders of magnitude higher than that of other sea areas. 137Cs long half-life (30 years), easy to accumulate in muscle and other soft tissues, not easily discharged from the body, it is more harmful to human health. Therefore, the anomalies caused by the departments concerned. In order to verify this phenomenon, we conducted a more comprehensive survey of the 137Cs content in Qingdao coastal waters, sediment and marine samples from 1981 to 1982. The results showed that the content of 137Cs in Qingdao coastal organisms was as low as that in other sea areas, ie, it was not significantly polluted.