Heavy Metal Pollution and Ecological Risk Assessment in Sediments of the Xiling Channel Inland Waterway Guangdong Province

Jianqiao Qin and Xiaoping Huang

Asian Agricultural Research, 2019, vol. 11, issue 06

Abstract: Using the sediment monitoring data of five sections of the Xiling Channel inland waterway of the Pearl River Delta, and using Nemerow composite index, the coefficient of variation, and the index of geoaccumulation (Igeo) and the potential ecological risk index, this paper analyzed and assessed the heavy metal pollution of sediments. The results indicate that Cr reached mild pollution; Cu had a large degree of variation, and the changes of Cr and Zn were significant with fluctuation; the enrichment of heavy metals decreased as follows: Cd > Cu > Cr > Zn > Pb > Ni > Hg > As; Cd had the highest degree of enrichment and belonged to moderate pollution; the ecological hazard of heavy metals was Cd ˃ Hg ˃ Cu ˃ Pb ˃ As ˃ Cr ˃ Ni ˃ Zn, and Cd had the highest ecological hazard and was the main controlling factor of potential ecological risk. In conclusion, the sediments in Xiling Channel inland waterway were polluted by heavy metals to some extent, and cadmium was the main pollutant and had the largest potential ecological risk.

Keywords: Agribusiness (search for similar items in EconPapers)
Date: 2019
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/298720/files/H ... gdong%20Province.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:asagre:298720

DOI: 10.22004/ag.econ.298720

Access Statistics for this article

More articles in Asian Agricultural Research from USA-China Science and Culture Media Corporation
Bibliographic data for series maintained by AgEcon Search ().