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本文通过对黄海表层沉积物中总β放射性的分析测定,对黄海环境放射性污染现状进行了初步评价。结合沉积物类型、沉积环境等因素的宏观状况,初步探讨了黄海沉积物中总β放射性的分布特征。总β放射性与沉积物的粒度、碳酸盐含量、Eh值及Fe~(3+)/Fe~(2+)值存在一定的负相关关系,与沉积物的有机质及自生黄铁矿的含量存在一定的正相关关系。海洋沉积物放射性调查必须同时考虑沉积物的类型、沉积物化学特征及海洋动力状况诸因素。
In this paper, by analyzing the total β radioactivity in surface sediments of the Yellow Sea, the status quo of radioactive pollution in the Yellow Sea has been preliminarily evaluated. According to the macroscopic conditions of sediment types, depositional environment and other factors, the distribution characteristics of total β radioactivity in the sediments of the Yellow Sea are discussed preliminarily. There is a certain negative correlation between total β radioactivity and sediment grain size, carbonate content, Eh value and Fe 3+ / Fe 2+ content, and the content of organic matter and authigenic pyrite There is a certain positive correlation. Radiological surveys of marine sediments must take into account both the type of sediment, the chemical characteristics of the sediment and the dynamics of the ocean.