Pollution And Sources Of Polycyclic Aromatic Hydrocarbons And Magnetic Proxies In Xuzhou Road Dust

This paper select the Erhuan road and three main roads in Xuzhou.First,wediscuss the characteristic of PAHs,look for the sources through ratio method andexecute the risk assessment. The research results shows that combustion is the mainsource of PAHs in the four streets road dust, such as coal, gasoline, diesel combustion,etc., This is consistent with that Xuzhou is a caol city.Such as combustion processproduct a large of PAHs, so that the environment is a coal city and xuzhou, isconsistent with coal-fired heating; Such as combustion process produces a largenumber of pahs pollution, so that PAHs pollution reached a serious level ofcontamination. Secound magnetic characteristics were studied in four streets dust andinvestigate the relationship between the parameters and the concentration ofPAHs.The studies shows that ferrimagnetic minerals is the main particulate matter inthe dust. In terms of relevance,magnetic susceptibility with3or4ring PAHs havehigher correlation,The concentration of Phe、Ant、Flt、Pyr、BaA、Bpe、Chr、Bap with frequency magnetic susceptibility have higher correlation.There was asignificant correlation between saturation isothermal remanent and the concentrationof Chr、Bkf.