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对2014年夏季渤海湾51个站位悬浮物样品中4种重金属(Fe、Mn、Si和Ba)含量进行了分析,研究了该海域悬浮物中重金属元素分布特征及其控制因素。结果显示,该海域中,重金属铁含量最高;硅含量最低;其他依次为:Fe>Mn>Ba>Si。钡的变异系数最大,超过100,其他重金属的变异系数在7.60-110.35之间。所有采样站位中,四种重金属的含量,从南到北,显示由低到高的趋势。硅的最高浓度站位在51号站位;其他均在50号站位。
The contents of four heavy metals (Fe, Mn, Si and Ba) in suspended sediment samples from 51 stations in Bohai Bay during the summer of 2014 were analyzed. The distribution characteristics of heavy metal elements in suspended sediments and their controlling factors were studied. The results show that in the sea area, the content of heavy metal iron is the highest, the content of silicon is the lowest, the others are Fe> Mn> Ba> Si. Barium coefficient of variation of the largest, more than 100, the coefficient of variation of other heavy metals between 7.60-110.35. Of all the sampling stations, the contents of four heavy metals, from south to north, show a trend from low to high. The highest concentration of silicon stations in the 51 stations; others are station 50.