Analysis and ecological risk assessment on heavy metal contents of farmland soils in Jiangxia district, Wuhan city

doi:10.14088/j.cnki.issn0439-8114.2020.17.012

Abstract

Abstract: A total of 149 soil samples were collected from farmland soils in Jiangxia district, Wuhan city. The contents of 8 heavy metals （Pb, Cd, Cr, Hg, As, Ni, Cu and Zn） were analyzed. The single factor pollution index and Nemerow synthetical pollution index were used to evaluate the heavy metals in farmland soils in this area based on the soil environmental quality risk management and control standard. The results showed that more than half of the farmland soils in Jiangxia distract were clean. The main pollution was Cd pollution, 40.27% of farmland soils were in the state of Cd pollution, about 1% of farmland soils were in the state of As, Ni and Zn pollution respectively, and no farmland soils were found to be contaminated by Cr, Cu, Hg and Pb.

Key words: farmland soils, heavy metal, pollution assessment, Jiangxia district, Wuhan city

CLC Number:

ZHANG Gui-you, WANG Su-ping, DU Lei, HUANG Xiang, JIANG Li, HONG Juan, LIAN Zhi-cheng, ZHANG Li-hong, YE Li-xia, CHEN Gang. Analysis and ecological risk assessment on heavy metal contents of farmland soils in Jiangxia district, Wuhan city[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(17): 54-57.

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