Chlorinated Polycyclic Aromatic Hydrocarbons in Urban Surface Dust and Soil of Shanghai, China

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Abstract:

Chlorinated polycyclic aromatic hydrocarbons (ClPAHs) are a group of halogenated contaminants found in the urban environment with a toxic potential similar to dioxins. Little is well-known on the distribution and characteristics of ClPAHs on urban surfaces. In this study, concentrations of 20 ClPAH congeners were measured in road dust and soil from crossroads along arterial traffic, park and lake areas, a chemical industrial complex, waste incineration power plants nearby, and a steel factory in Shanghai. ClPAHs are ubiquitous and log-normally distribute in urban surface with a range from 0.27 to 206 ng/g dw for dust, and with a range from 0.05 to 94.3 ng/g dw for soils. The highest mean concentration of total 20 ClPAHs is found in floor dust from a steel factory. ClPyr and ClPhe are predominant in road dust, which infers that ClPAHs detected in the urban surface dust samples originate from vehicle exhaust.

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Advanced Materials Research (Volumes 610-613)

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2989-2994

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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