期刊
JOURNAL OF GEOCHEMICAL EXPLORATION
卷 176, 期 -, 页码 91-99出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gexplo.2016.01.005
关键词
Brick kilns; Toxic elements; Multivariate analysis; Topsoil; Iran
资金
- Iran National Science Foundation (INFS) [92011972]
There is an increasing demand for the development of brick kiln area in Iran, which emits a considerable amount of pollutants to environment The present study aimed to investigate the extent of soil contamination by heavy metals around the brick kiln area in Aran-o-Bidgol City. The correlation coefficients, analysis of variance, principal component analysis, cluster analysis, soil contamination indices and interpolation technique were utilized to investigate the soil contamination and pinpoint the possible sources of contamination. The results showed the average concentration of all heavy metals were greater than background values and soils were contaminated by heavy metals to some extent Results also indicated that copper, nickel and zinc had simultaneously emanated from anthropogenic including agricultural activities and urban emissions while the sources of cadmium and lead could mostly be attributed to different anthropogenic activities including brick kilns and related transportation. The distribution maps revealed that the brick kiln emissions had only affected the concentrations of cadmium and lead to some degree. (C) 2016 Elsevier B.V. All rights reserved.
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