期刊
ENVIRONMENTAL POLLUTION
卷 158, 期 9, 页码 2888-2899出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2010.06.012
关键词
PAHs; Oxygen-containing PAHs; Soils; Coal power plant; Uzbekistan
资金
- Deutsche Forschungsgemeinschaft (DFG) [DFG Wi1601/2]
- Earth System Science Research Center (Geocycles) of the Johannes Gutenberg University of Mainz
- German Academic Exchange Service
We measured the concentrations and depth distribution (0-10, 10-20 cm) of 31 PAHs and 12 OPAHs in soils at eleven equidistant sampling points along a 20-km transect in the Angren industrial region (coal mine, power plant, rubber factory, gold mine), Uzbekistan to gain an insight into their concentrations, sources, and fate. Concentrations of all compounds were mostly much higher in the 0-10 cm than in the 10-20 cm layer except in disturbed soil close to the coal mine. Proximity to one of the industrial emitters was the main determinant of PAH and OPAH concentrations. The Sigma 31PAHs concentrations correlated positively with the Sigma 7 carbonyl-OPAH (r = 0.98, p < 0.01), Sigma 5 hydroxyl-OPAH (r = 0.72, p < 0.05), and with industrially emitted trace metals in the topsoil, identifying industrial emissions as their common source. Concentrations of several OPAHs were higher than their parent PAHs, but their vertical distribution in soil suggested only little higher mobility of OPAHs than their corresponding parent PAHs. (C) 2010 Elsevier Ltd. All rights reserved.
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