钦州湾表层海水重金属的分布特征及影响因素

Distributions and Influence Factors of Heavy Metal in Surface Seawaters in Qinzhou Bay

于2009年春季和秋季对钦州湾海域进行调查,分析了表层海水中溶解态重金属Cu,Pb,Zn,Cd,,Cr,结果表明:春季各金属平均含量相对较低,单项污染指数(Pi)均较小,重金属Cu、Pb、Zn、Cd和Cr的含量均低于海水水质标准第二类标准限值,表明钦州湾表层海水尚未明显受到重金属污染。

During the investigation in China＇s Qinzhou Bay in the spring and autumn of 2009, surface seawater samples taken for dissolved heavy metals of Cu, Pb, Zn and Cd were analyzed. The result showed that all of the heavy metal contents and single - pollutant index relatively low and that were lower than the standard values of categories Ⅱ of the seawater. It was indicated that heavy metal pollution was inconspicuous at surface seawater of Qinzhou Bay.