苏南地区表层土壤中多氯萘的浓度及来源

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Abstract The concentrations, profiles and source apportionment of polychlorinated naphthalenes (PCNs) in 34surface soil samples from the South of Jiangsu were analyzed by gas chromatograph coupled with a triple quadrupole mass spectrometer. Total concentrations of PCNs in all samples ranged from 0.263 to 2.48ng/g dw with an average of 0.464ng/g dw except sampling point 16, which had the highest concentration of 2.48ng/g dw, the TEQs of PCNs ranged from 0.045 to 0.157pg/g dw, indicating a low concentration level. MonoCNs and DiCNs were the most predominant homologues in all the samples, accounting for 39.3%~91.4%. The congeners CN-66/67, CN-69 and CN-73 were the predominant contributors to the TEQs, accounting for 25.6%, 29.1% and 28.7%, respectively. The ratio of ΣPCN_Com/ΣPCNs could indicate that the high temperature combustion process made great influence to the PCNs pollution in the South of Jiangsu. Correlation analysis and principal component analysis showed that the use of old electrical equipment and traffic emissions might be also the possible sources to the PCNs pollution in this study area. However, the sources of PCNs pollution are more complex, which need a further study to determine the source of PCNs in surface soil samples from the South of Jiangsu accurately.

Key words： polychlorinated naphthalenes surface soil the South of Jiangsu source

Received: 06 June 2016

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X53

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	Articles by authors
	XUE Ling-nan
	ZHANG Lin-li
	ZHANG Li-fei
	SHI Shuang-xin
	DONG Liang
	LI Xiao-xiu

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XUE Ling-nan,ZHANG Lin-li,ZHANG Li-fei等. Concentration and source of polychlorinated naphthalenes in surface soils from the South of Jiangsu[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(2): 646-653.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2017/V37/I2/646

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