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An approach to partition the anthropogenic and natural components of heavy metal accumulations in roadside agricultural soil.

Authors :
Shaohua Wu
Shenglu Zhou
Xingong Li
Trish Jackson
Qing Zhu
Source :
Environmental Monitoring & Assessment; Feb2011, Vol. 173 Issue 1-4, p871-881, 11p
Publication Year :
2011

Abstract

This paper describes a new approach that allows us to partition the anthropogenic and natural contributions to heavy metal accumulations in roadside agricultural soils. This approach, combining trend analysis and multivariate statistical analysis, partitions total heavy metals into three components: anthropogenic, natural, and unexplained residual. The approach was applied in a case study in Yixing City, China, to determine the spatial distributions of heavy metal accumulations. The results show that anthropogenic components of Pb, Cu, Zn, and Cd account for 52.4%, 23.04%, 5.09%, and 10.9% of total content, respectively. Spatial distributions of anthropogenic components are characterized by decreasing accumulation with increasing distance from the road. Ranges of influence of traffic for Pb, Cu, and Cd are beyond 300 m, whereas the range of Zn is less than 200 m. The spatial distributions of the four elements' natural components show relatively similar distribution patterns. Assessments of variable partition methods show that the predicted values of Pb, Cu, Zn, and Cd are consistent with their measured values. The anthropogenic components extracted from total contents of heavy metal will be useful for modeling heavy metal accumulations produced by human activities. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01676369
Volume :
173
Issue :
1-4
Database :
Complementary Index
Journal :
Environmental Monitoring & Assessment
Publication Type :
Academic Journal
Accession number :
57242096
Full Text :
https://doi.org/10.1007/s10661-010-1430-7