Research on the Nutrient and Heavy Metal Pollution Characteristics of Sediment in Zaoxia River in Shenzhen City
Abstract
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.
- Publication:
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IOP Conference Series: Earth and Environmental Science
- Pub Date:
- July 2018
- DOI:
- 10.1088/1755-1315/170/3/032101
- Bibcode:
- 2018E&ES..170c2101Z