Concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) were measured in road dust and soil from different functional urban areas in Shanghai. The ∑PAHs concentrations varies from 99.4 to 66900 ng/g dw, where the highest one is found in dust from a chemical industry producing black carbon. The mean concentrations of ∑PAHs for dust increase in the following order of land uses: park and lake area < waste incineration power plants nearby < crossroads along arterial traffic < chemical and steel industrial nearby. Diagnostic ratios of Flu/(Flu+Pyr) and IDP/(IDP+BghiP) indicate that most PAHs in urban surfaces are originated primarily from biomass, coal and petro-chemical fuel combustion. The contribution of individual carcinogenic PAHs to the total TEQs decreases in the following order: BaP > DBahA > BbF > IDP > BkF > BaA > Chr, underlining the importance of BaP as a surrogate compound of a PAHs mixute.
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机译：上海不同功能城市地区的路尘和土壤中测量多环芳烃（PAHS）的浓度和谱。 ΣPAHS浓度从99.4〜66900 ng / g dw变化，其中最高的是在生产黑碳的化学工业中的灰尘中发现。以下土地使用顺序的σpahs的平均浓度：公园和湖区<浪费焚烧发电厂<沿着动脉交通的十字路口<化学和钢铁工业附近。流感/（流感+ PYR）和IDP /（IDP + BGHIP）的诊断比表明，城市表面的大多数PAHS主要来自生物量，煤和石油化学燃料燃烧。单个致癌PAH对总TEQ的贡献降低以下顺序：BAP> DBAHA> BBF> IDP> BKF> BAA> CHR，下调BAP作为PAHS混合物的替代化合物的重要性。
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