中国东海舟山群岛和象山港表层沉积物中多氯联苯的空间分布及来源
Spatial distribution and sources of polychlorinated biphenyls in surface sediments from the Zhoushan Archipelago and Xiangshan Harbor, East China Sea.
作者信息
Wang Xiaoyan, Xu Huanzhi, Zhou Yongdong, Wu Changwen, Kanchanopas-Barnette Praparsiri
机构信息
National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316004, PR China; Department of Aquatic Science, Faculty of Science, Burapha University, Chonburi 20131, Thailand.
National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316004, PR China; Persistent Organic Pollutants Monitoring Laboratory, Zhoushan Center for Disease Control and Prevention, Zhoushan 316004, PR China.
出版信息
Mar Pollut Bull. 2016 Apr 15;105(1):385-92. doi: 10.1016/j.marpolbul.2016.02.022. Epub 2016 Feb 16.
This study investigated ambient concentrations and potential sources of polychlorinated biphenyls (PCBs) in surface sediments from the Zhoushan Archipelago and adjacent Xiangshan Harbor. The ∑18PCB (total 18 PCB) concentrations ranged between 1.48 and 7.94ng/g d.w., average at 4.20ng/g d.w., presenting a low adverse environmental risk. Penta-CB was the dominant congener, contributing 46.01%-86.44% of the total PCBs. Concentrations of PCBs were highest in the northeastern part of the Zhoushan Archipelago and Xiangshan Harbor. Principal component analysis (PCA) showed that PCBs have a mixed origin; atmospheric deposition and PCB dispersion from paint flakings being the main sources of PCB pollution. Aroclor 1245 and Clophen A50 were the potential PCB sources in all sampling sites. This paper provides the first intensive survey and statistical analyses of PCB distributions and sources in the Zhoushan Archipelago and adjacent Xiangshan Harbor. This study may provide a reference to environmental protection and monitoring of PCB pollution in the East China Sea.
本研究调查了舟山群岛及邻近象山港表层沉积物中多氯联苯（PCBs）的环境浓度及潜在来源。∑18PCB（18种多氯联苯总量）浓度在1.48至7.94纳克/克干重之间，平均为4.20纳克/克干重，呈现出较低的环境风险。五氯联苯是主要同系物，占多氯联苯总量的46.01%-86.44%。多氯联苯浓度在舟山群岛东北部和象山港最高。主成分分析（PCA）表明，多氯联苯来源混合；大气沉降和油漆剥落中的多氯联苯扩散是多氯联苯污染的主要来源。在所有采样点，Aroclor 1245和Clophen A50是潜在的多氯联苯来源。本文首次对舟山群岛及邻近象山港多氯联苯的分布和来源进行了密集调查和统计分析。本研究可为东海多氯联苯污染的环境保护和监测提供参考。
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