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Distribution of polycyclic aromatic hydrocarbons in soils at Guiyu area of China, affected by recycling of electronic waste using primitive technologies

TitleDistribution of polycyclic aromatic hydrocarbons in soils at Guiyu area of China, affected by recycling of electronic waste using primitive technologies
Publication TypeJournal Article
Year of Publication2006
AuthorsYu XZ, Gao Y, Wu SC, Zhang HB, Cheung KC, Wong MH
Journal TitleChemosphere
Volumeonline-fir
Pagesxxx-xxx
KeywordsConcentration, PAH, Principal component analysis, Profile, Soil, Source
AbstractThe concentration, distribution, profile and possible source of polycyclic aromatic hydrocarbons (PAHs) in soil were studied inGuiyu, an electronic waste (E-waste) recycling center, using primitive technologies in Southeast China. Sixteen USEPA priority PAHswere analyzed in 49 soil samples (0–10 cm layer) in terms of individual and total concentrations, together with soil organic matter (SOM)concentrations. The concentrations of a sum of 16 PAHs ranged from 44.8 to 3206 lg kg 1 (dry weight basis), in the descending order ofE-waste open burning sites (2065 lg kg 1) > areas near burning sites (851 lg kg 1) > rice fields (354 lg kg 1) > reservoir areas(125 lg kg 1). The dominant PAHs were naphthalene, phenanthrene and fluoranthene, which were mainly derived from incompletecombustion of E-waste (e.g. wire insulations and PVC materials), and partly from coal combustion and motorcycle exhausts. Allindividual and total PAH concentrations were significantly correlated with SOM except for naphthalene and acenaphthylene. Principalcomponent analysis was performed, which indicated that PAHs were mainly distributed into three groups in accordance with their ringnumbers and biological and anthropogenic source. In conclusion, PAH concentrations in the Guiyu soil were affected by the primitiveE-waste recycling activities.
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