海洋科学2016，Vol.40Issue(2)：65-76,12.DOI:10.11759/hykx20150316003
黄河三角洲表层土壤重金属环境质量评价
Assessment of heavy metal Contamination in the surface soil of the Yellow River Delta, China
摘要
Abstract
The research focuses on the distribution of heavy metal elements in surface soil and sediments. Total 219 surface soil samples, including 25 samples of shallow coastal wetlands, were sampled. The content of heavy metal elements in these samples were tested using modern techniques. The potential ecological risk index (RI), sin-gle-factor pollution index, and Nemerow index were used, which reflects Cr > Pb > Zn > As > Cu > Cd > Hg. Be-cause the sea water washes the shallow coastal wetlands, their samples have a lower content of heavy metal ele-ments. The greatest threat of heavy metal pollution in the upper delta plain is from As and Cd, and 88.5% of soils achieved the soil environmental standard of National First Grade. Further, the greatest threat of heavy metal pollu-tion in the shallow coastal wetlands is from As, and 96% of soils achieved the soil environmental standard of Na-tional First Grade. A deeper analysis of potential pollution disclosed that RI, single-factor pollution index, and Ne-merow index are too low. They do not reach the lowest pollution standard, implying that the soils in the Yellow River Delta are in good environmental condition.关键词
黄河三角洲/表层土壤/沉积物/重金属Key words
Yellow River Delta/Heavy metal/Surface Soil/Sediment分类
资源环境引用本文复制引用
缪雄谊,叶思源,郝玉培,阳莲锦,陈伟海,黄保健,沈利娜..黄河三角洲表层土壤重金属环境质量评价[J].海洋科学,2016,40(2):65-76,12.基金项目
国土资源部公益性行业基金(201111023) （201111023）
国家自然科学基金(41240022)以及海洋地质保障工程项目(GZH201200503) （41240022）
大地调项目(1212010611402)联合资助@@@@ Scientific research fund of Ministry of land and resources public welfare profession of China(201111023) （1212010611402）
The National Natural Science Fund(41240022) and Marine Geological support Engineering Project(GZH201200503) （41240022）
Geological survey project(1212010611402)。 （1212010611402）
