上海国土资源2012，Vol.33Issue(2)：69-73,5.
长江口海域表层沉积物重金属元素赋存形态特征
The Geochemical Forms of Heavy Metals in Surface Sediments in the Yangtze River Estuary
摘要
Abstract
Near surface sediments from the Yangtze River Estuary were analyzed for the presence of heavy metals.The results show that residual concentrations of Cd,Hg,and Pb are all less than 50%,while Zn,As,Cr,Cu,and Ni are more than 50%.Furthermore,the residual and total amounts of these eight heavy metals（Cd,Hg,Pb,Zn,As,Cr,Cu,and Ni） have a significant positive correlation with the total heavy metal content which suggests that the sedimentary environment and sediment grain size have a significant influence on the geochemical form of heavy metals.We conclude that the source material is the primary control on the occurrence of heavy metals in the Yangtze Estuary,followed by mineral composition,and then hydrodynamics,sediment grain size,and physicochemical conditions.关键词
长江口/沉积物/重金属/赋存形态Key words
Yangtze River Estuary/sediments/heavy metals/geochemical forms分类
海洋科学引用本文复制引用
何中发,方正,温晓华,张琢,王张华,赵宝成,谢建磊,李晓..长江口海域表层沉积物重金属元素赋存形态特征[J].上海国土资源,2012,33(2):69-73,5.基金项目
中国地质调查局“上海市近岸海域多目标区域地球化学调查” （）
上海市科委“上海市后备土地资源潜力与动态规律研究” （）
上海市科委“海岸带地质环境对城市安全影响监测体系研究” （）
