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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
Volume65
Pages1500-1509
ISBN Number0045-6535
Accession NumberISI:000242962900007
AbstractThe concentration, distribution, profile and possible source of polycyclic aromatic hydrocarbons (PAHs) in soil were studied in Guiyu, an electronic waste (E-waste) recycling center, using primitive technologies in Southeast China. Sixteen USEPA priority PAHs were 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 mu g kg(-1) (dry weight basis), in the descending order of E-waste open burning sites (2065 mu g kg(-1)) > areas near burning sites (851 mu g kg-1) > rice fields (354 mu g kg(-1)) > reservoir areas (125 mu g kg(-1)). The dominant PAHs were naphthalene, phenanthrene and fluoranthene, which were mainly derived from incomplete combustion of E-waste (e.g. wire insulations and PVC materials), and partly from coal combustion and motorcycle exhausts. All individual and total PAH concentrations were significantly correlated with SOM except for naphthalene and acenaphthylene. Principal component analysis was performed, which indicated that PAHs were mainly distributed into three groups in accordance with their ring numbers and biological and anthropogenic source. In conclusion, PAH concentrations in the Guiyu soil were affected by the primitive E-waste recycling activities. (c) 2006 Elsevier Ltd. All rights reserved.
URL<Go to ISI>://000242962900007
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