期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：3
页码：032101
DOI：10.1088/1755-1315/170/3/032101
语种：English
出版社：IOP Publishing
摘要：This paper mainly investigated the black-smelly Zaoxia River in Shenzhen city and analyzed the moisture content, nutrients and heavy metal levels in river sediments. The results showed that total phosphorus, total nitrogen and heavy metals in the sediment of Zaoxia River Shenzhen City exceeded the standard, and the pollution levels ranged from moderate to serious. Meantime, water content, total phosphorus, total nitrogen, heavy metals were closely related. The order of potential ecological risk of a single heavy metal was Cd> Cu> Ni> Pb> Cr> Zn. Finally, based on the spatial distribution of pollutants, the proposed range of environmental dredging was given in this study.
