Characteristics and potential risk assessment of heavy metal contents in urban soil, Liaoyang City

WANG Chunpeng; YOU Jiangong; SUN Hao; TIAN Ye; HOU Hongxing; SHI Jingtao; JIN Shengkai; WANG Mo

2021 Vol. 40, No. 10

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WANG Chunpeng, YOU Jiangong, SUN Hao, TIAN Ye, HOU Hongxing, SHI Jingtao, JIN Shengkai, WANG Mo. Characteristics and potential risk assessment of heavy metal contents in urban soil, Liaoyang City[J]. Geological Bulletin of China, 2021, 40(10): 1680-1687.

Citation:

WANG Chunpeng, YOU Jiangong, SUN Hao, TIAN Ye, HOU Hongxing, SHI Jingtao, JIN Shengkai, WANG Mo. Characteristics and potential risk assessment of heavy metal contents in urban soil, Liaoyang City[J]. Geological Bulletin of China, 2021, 40(10): 1680-1687.

Characteristics and potential risk assessment of heavy metal contents in urban soil, Liaoyang City

1.
Langfang Natural Resources Comprehensive Survey Center, China Geological Survey, Langfang 065000, Hebei, China
2.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China

More Information

Corresponding author: SUN Hao, 672415613@qq.com

Received Date: 28 July 2020

Revised Date: 07 June 2021

Publish Date: 15 October 2021

Abstract

Abstract

The contents and pollution degree of As, Cd, Cr, Cu, Hg, Ni, Pb, Zn and other elements in surface soil samples of Liaoyang urban greenbelt were comprehensively analyzed by pollution load index method and ecological risk index method.The results show that, except As, the concentrations of other seven heavy metal elements in soil is higher than the national background value, of which Hg, Cd are the main pollution elements, and the degree of their contamination has reached heavy and moderate respectively.The trace elements of Zn, Pb, Cu, Cr and Ni are in slight pollution, while As is basically free of contamination.The evaluation of the ecological risk shows that Hg and Cd elements are the main ecological risk factors, and Hg and Cd belong to strong and medium ecological risk respectively.In general, Liaoyang City has slight heavy metal element pollution with medium potential ecological risk.The soil ecological environment in the new city is better than that in the old one, and it is recommended to further play the role of dredging function of the new city to relieve the urban pressure.
- Liaoyang /
- urban greenbelt /
- surface soil /
- heavy metal /
- risk assessment

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