Fraction Distribution and Risk Assessment of Heavy Metals in Soils around the Mining Area in Zhijin

Yaqi Jia, Zhen Yang, Dan Geng, Qin Deng and Di Wu

Asian Agricultural Research, 2016, vol. 07, issue 12, 6

Abstract: The pollution characteristics of Cd, Cr, Cu, Zn, Ni and Hg in agricultural soil around coal mining area were studied. After long-term mining activity, the soil around mining area was polluted by 6 elements to different degrees. Especially for Cd, its concentration was 3.2 times that of the National Soil Environmental Quality Standard Ⅱ. The values suggest that the contamination degree from strong to weak in soil is in the order of Hg>Cu>Cr>Zn>Ni>Cd. BCR sequential extraction results show that the order of average percentage about weak acid soluble fraction (F1) is that Cd>Ni>Zn>Cu>Hg>Cr, the order of 6 heavy metals available fraction (F1+F2+F3) is that Cu (56.89)>Cd (50.95)>Ni (41.52)>Zn (35.06)>Hg (23.04)>Cr (4.88). The RAC results indicate that soils were in a moderate potential ecological risk by pollution of Cd, and at the same time, Cu, Zn, Ni, Hg should be noted.

Keywords: Agribusiness (search for similar items in EconPapers)
Date: 2016
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/240741/files/16.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:240741

DOI: 10.22004/ag.econ.240741

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 ().