Distribution Characteristics of Zn Content and its Pollution Assessment in Suzhou Street Dusts

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After selecting 23 samples from street pavement dust in Suzhou city, this article analyzed the Zn content in street dust with X-RF fluorescence spectrometer analysis and carried on the ecological risk evaluation. The results show that the Zn content in Suzhou street dusts is from 121 to 538 (mg / kg), and distribution characterized of different functional areas as follows: the business district > the vicinity of the station>the rest area of culture and education > the residential area> the industrial area; the accumulation index values is between 0.76 and 1.78, which is non-polluting or moderately polluted.

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239-243

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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