He Xinran, Song Xiaojuan, Pang Yong, Li Yiping, Chen Binlin, Feng Zhihua
College of Environment, Hohai University, No. 1 Xikang Road, Gulou District, Nanjing, 210098, China,
Environ Monit Assess. 2014 Jul;186(7):4001-12. doi: 10.1007/s10661-014-3675-z. Epub 2014 Feb 20.
The contamination of semi-volatile organic compounds (SVOCs) in the surface sediments of the Guan River Estuary, China was fully investigated. Total concentrations of 56 species of SVOCs ranged from 132 to 274 ng/g with an average of 186 ng/g (dry weight). Polycyclic aromatic hydrocarbon (PAH) concentrations were positively correlated with clay content and negatively correlated with sediment grain size. Source identification indicated that PAHs originated mainly from pyrolytic sources. However, intense ship traffic in the estuary may provide sources of petrogenic PAHs. Organochlorine pesticides (OCPs) mainly originated from direct input of dichlorodiphenyltrichloroethanes (DDTs) during some industrial processes. The SVOC concentrations were also compared with International Sediments Quality Guidelines and Sediments Quality Criteria, and the results indicated that negative biological impacts may originate from high concentrations of FLO, p,p'-DDE, and total DDTs.
对中国灌河口表层沉积物中的半挥发性有机化合物（SVOCs）污染情况进行了全面调查。56种SVOCs的总浓度范围为132至274纳克/克，平均为186纳克/克（干重）。多环芳烃（PAH）浓度与粘土含量呈正相关，与沉积物粒度呈负相关。源解析表明，PAHs主要来源于热解源。然而，河口繁忙的船舶交通可能提供成岩PAHs的来源。有机氯农药（OCPs）主要源于某些工业过程中二氯二苯三氯乙烷（DDTs）的直接输入。还将SVOC浓度与国际沉积物质量指南和沉积物质量标准进行了比较，结果表明，高浓度的氟乐灵、p,p'-滴滴伊和总滴滴涕可能会产生负面生物影响。
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