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  • 人工放射性污染的主要来源
  • 本站编辑:杭州申浙辐射防护工程有限公司发布日期:2016-01-13 13:59 浏览次数:

  放射性污染澳门皇冠足彩是指人类活动排出的放射性污染,使环境的放射性水平高于天然本底或超过国家规定的标准,即为放射性污染。环境放射性的辐射源有天然辐射源和人工辐射源两大类。天然辐射源中,一类是通过地球大气层的宇宙射线,另一类是地球水域和矿床(如铀、镭等矿)的天然辐射源。人工辐射源有医用射线源、核试验产生的放射性沉降以及核能工业的各种放射性废物。放射性污染,指因辐射源的影响而导致的对环境污染。

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