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Assessment on Soil Heavy Metals Pollution by Geoaccumulation Index in Jinghuiqu Irrigation District of Shaanxi Province(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第03期
Page:
288-291
Research Field:
水资源与环境
Publishing date:

Info

Title:
Assessment on Soil Heavy Metals Pollution by Geoaccumulation Index in Jinghuiqu Irrigation District of Shaanxi Province
Author(s):
YI Xiu1;  GU Xiao-jing2;  HOU Yan-qing1;  LIU Xiu-hua1;  XIE Juan1
(1.School of Environmental Sciences and Engineering, Chang'an University, Xi'an 710054, Shaanxi, China; 2.Xi'an Research Institute of Environmental Protection, Xi'an 710002, Shaanxi, China)
Keywords:
heavy metal;  geoaccumulation index;  soil quality;  pollution;  Jinghuiqu irrigation district;  Shaanxi Province
PACS:
X131.3
DOI:
-
Abstract:
By investigating field and sampling soil in Jinghuiqu irrigation district of Shaanxi, the contents of Hg、Cd、Cr、Pb、As、Cu and Zn in soil were analyzed, and soil quality was assessed with geoaccumulation index. The results showed that the pollution levels of heavy metals were higher at the sampling sites of Yanliang, Lintong and Gaoling than that at Sanyuan and Jingyang; the pollution level of Hg was highest, geoaccumulation index was 1.007-3.117, the grade of geoaccumulation index was moderate or strong pollution for 58% of sampling sites, and moderate pollution for 38% of sampling sites; the pollution level of Zn was only less than that of Hg, geoaccumulation index was -0.407-1.644, the grade of geoaccumulation index was no pollution or moderate pollution for 71% of sampling sites; the variability of pollution level of Cd was greatest, geoaccumulation index was -2.705-3.312, the grade of geoaccumulation index was no pollution for 70% of sampling sites, but the grade of geoaccumulation index was strong pollution for individual sampling site; geoaccumulation indexes of Cu, Pb, Cr and As were respectively -0.535-0.421, -1.119--0.144, -1.005--0.458 and -0.562-0.077, the grade of geoaccumulation index was no pollution for most sampling sites.

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Last Update: 2010-09-20