【摘要】 分3个区域全面分析了连云港近岸海域沉积物中主要重金属含量平面分布特征,共采集了28个表层沉积物样品,研究表明,各区域中重金属主要污染物为Cu,其次分别为As,Cd和Pb,Hg污染水平相对较低;临洪河口、碱厂排污和西大堤工程对连云港近岸海域沉积物中污染物分布影响较大;和1985年西大堤工程建设前相比较,重金属Pb和Cd污染呈减轻趋势,Cu和As污染呈加重趋势;3个区域相比较,碱厂区域沉积物质量最差,污染呈加重趋势。更多还原

【Abstract】 The characteristics of spatial distribution of heavy metals in the surface sediments of Lianyungang nearshore area in Jiangsu Province have been analyzed.28 surface sediments sample were collected.It was found that the main pollutant in each region was Cu,the sequence was As, Cd,Pb,and the pollution of Hg is lower relatively.The main influence of pollutant concentration distribution was caused by Linhong River,Alkali Factory’s outlet and the West Dam Program.Compared with the Program in 1985,the pollution of heavy metals such as Pb and Cd,was slighter,while the pollution of Cu and As was more serious.Among these regions,the quality of sediments in the Alkali Factory was poorest,indicating that the pollution was getting from bad to worse.更多还原