Sources and risk assessment of metal contamination in soils at the international airport of Shanghai,China |
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| Authors: | Pinhua Rao Aiyun Zhu Wei Yao Wenqi Zhang Yong Men |
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| Institution: | 1. Department of Environmental Engineering, School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, P.R. China;2. Beijing Municipal Research Institute of Environmental Protection, Beijing, P. R. China |
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| Abstract: | Concentrations of Cd, Pb, Zn, Cr, Cu, and Ni in soils at the Pudong International Airport (PIA) of Shanghai, China, were determined to assess the sources and potential ecological risks. Compared to the soil background values of Shanghai, 31 soil samples out of 33 were highly contaminated with Cd, and 76% were moderately contaminated by Cr, Ni, Pb, and Zn. Principal component analysis and clustering analysis indicated that Pb and Cd mainly originated from anthropogenic sources, while Zn, Cr, Ni, and Cu were mainly from natural sources. Relatively high concentrations of Cd and Pb were observed at sampling points near the landing or take-off sites or a close-by highway. Both air and highway traffic affected the quality of the soils at PIA. |
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| Keywords: | metals risk assessment sources analysis soil airport |
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