Levels and spatial distribution of gaseous polychlorinated biphenyls and polychlorinated naphthalenes in the air over the northern South China Sea
Li, Qilu1,3; Xu, Yue1; Li, Jun1; Pan, Xiaohui2; Liu, Xiang1; Zhang, Gan1
2012-09-01
发表期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
卷号56页码:228-235
产权排序[Li, Qilu; Xu, Yue; Li, Jun; Liu, Xiang; Zhang, Gan] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Pan, Xiaohui] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Li, Qilu] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
摘要Monitoring marine persistent organic pollutants (POPs) is important because oceans play a significant role in the cycling of POPs. The South China Sea (SCS) is surrounded by developing countries in Southeast Asia which are centers of e-waste recycling and the ship dismantling industry. In this study, shipboard air samples collected over the SCS between September 6 and 22, 2005 were analyzed for polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). The levels of Sigma(12)PCBs ranged from 32.3 to 167 pg m(-3), with a mean value of 98.4 +/- 36.0 pg m(-3). Tetra-CBs were the predominant congeners. The concentrations of Sigma(18)PCNs ranged from N.D. to 26.0 pg m(-3), with a mean value of 10.5 +/- 7.16 pg m(-3), and tri-CNs were predominant. The gaseous concentrations of PCBs and PCNs over the SCS were consistent with those over other seas and oceans. Compared with previous studies, it was found that the concentrations of PCBs exhibited an obviously declining trend. The measured PCB and PCN concentrations in the atmosphere over the SCS were influenced by their proximity to source regions and air mass origins. The highest gaseous PCB and PCN concentrations were found at sampling sites adjacent to the continental South China. E-waste recycling, ship dismantling and combustion in South China and some Southeast Asian countries might contribute PCBs and PCNs to the atmosphere of the SCS. (C) 2012 Elsevier Ltd. All rights reserved.; Monitoring marine persistent organic pollutants (POPs) is important because oceans play a significant role in the cycling of POPs. The South China Sea (SCS) is surrounded by developing countries in Southeast Asia which are centers of e-waste recycling and the ship dismantling industry. In this study, shipboard air samples collected over the SCS between September 6 and 22, 2005 were analyzed for polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). The levels of Sigma(12)PCBs ranged from 32.3 to 167 pg m(-3), with a mean value of 98.4 +/- 36.0 pg m(-3). Tetra-CBs were the predominant congeners. The concentrations of Sigma(18)PCNs ranged from N.D. to 26.0 pg m(-3), with a mean value of 10.5 +/- 7.16 pg m(-3), and tri-CNs were predominant. The gaseous concentrations of PCBs and PCNs over the SCS were consistent with those over other seas and oceans. Compared with previous studies, it was found that the concentrations of PCBs exhibited an obviously declining trend. The measured PCB and PCN concentrations in the atmosphere over the SCS were influenced by their proximity to source regions and air mass origins. The highest gaseous PCB and PCN concentrations were found at sampling sites adjacent to the continental South China. E-waste recycling, ship dismantling and combustion in South China and some Southeast Asian countries might contribute PCBs and PCNs to the atmosphere of the SCS. (C) 2012 Elsevier Ltd. All rights reserved.
通讯作者Li, J (reprint author), Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China.,junli@gig.ac.cn
关键词Pcbs Pcns South China Sea Atmosphere
作者部门中科院海岸带环境过程与生态修复重点实验室
学科领域Environmental Sciences ; Meteorology & Atmospheric Sciences
项目资助者Chinese Academy of Sciences[KZCX2-YW-GJ02]; Natural Science Foundation of China (NSFC)[40821003, 41073080]
收录类别SCI
关键词[WOS]POLYBROMINATED DIPHENYL ETHERS ; HISTORICAL EMISSION INVENTORY ; PERSISTENT ORGANIC POLLUTANTS ; ORGANOCHLORINE PESTICIDES ; PCB CONGENERS ; GAS-EXCHANGE ; ARCTIC AIR ; ATLANTIC-OCEAN ; GREAT-LAKES ; BALTIC SEA
文章类型Article
语种英语
资助项目Li, Qilu; Xu, Yue; Li, Jun; Pan, Xiaohui; Liu, Xiang; Zhang, Gan
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000306347900028
引用统计
被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/6009
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
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GB/T 7714
Li, Qilu,Xu, Yue,Li, Jun,et al. Levels and spatial distribution of gaseous polychlorinated biphenyls and polychlorinated naphthalenes in the air over the northern South China Sea[J]. ATMOSPHERIC ENVIRONMENT,2012,56:228-235.
APA Li, Qilu,Xu, Yue,Li, Jun,Pan, Xiaohui,Liu, Xiang,&Zhang, Gan.(2012).Levels and spatial distribution of gaseous polychlorinated biphenyls and polychlorinated naphthalenes in the air over the northern South China Sea.ATMOSPHERIC ENVIRONMENT,56,228-235.
MLA Li, Qilu,et al."Levels and spatial distribution of gaseous polychlorinated biphenyls and polychlorinated naphthalenes in the air over the northern South China Sea".ATMOSPHERIC ENVIRONMENT 56(2012):228-235.
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