黄海和东海海域沉积物的环境质量评价

Evaluation on sediment quality in Yellow Sea and East China Sea

分析了黄海和东海陆架浅海区域表层沉积物中有机碳、硫化物、油类、Cu、Zn、Pb、Cd、Hg、Cr、As、总氮、总磷的含量,通过对数据进行适当的数理统计处理,计算出了黄海和东海陆架区各化学要素的背景值。以此背景值作为评价标准,采用单因子评价方法,确定了调查海区沉积物中各化学要素的贫化区、背景值区、超背景值区和异常富集区。

The contents of organic carbon, sulfide, oil, Cu, Zn, Pb, Cd, Hg, Cr, As, TP and TN were analyzed in sediments of the continental shelf over Yellow Sea and East China Sea. The background values of those elements were determined through the (proper) process of mathematical statistics. The assessment on the sediment (environmental) (quality) was made in the sea areas with the single-factor (method); the background (values) were used as evaluation standards. The deficient, background value, exceeding (background) value and concentrated areas (were) given for each chemical element.