Research on the Nutrient and Heavy Metal Pollution Characteristics of Sediment in Zaoxia River in Shenzhen City

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhu, Daiwen^1,2 ; Li, Gang^1,2

Shaanxi Provincial Land Engineering Construction Group Co, Ltd., Xi'an City, Shaanxi province

710075, China^1

Institute of Land Engineering and Technology, Shaanxi Land Construction Group Co.Ltd., Xi'an city, Shaanxi province

710075, China^2

关键词: Heavy metal levels;    Heavy metal pollution;    Pollution level;    Potential ecological risk;    River sediments;    Total nitrogen;    Total phosphorus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/3/032101/pdf
DOI  :  10.1088/1755-1315/170/3/032101

学科分类：环境科学（综合）

来源: IOP

【 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.