Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River

doi:10.1021/es505084j

	Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River
	Lin, Tian 1; Guo, Zhigang 2; Li, Yuanyuan 2; Nizzetto, Luca 3,4; Ma, Chuanliang 2; Chen, Yingjun 5; Lin, T (reprint author), Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China. [email protected]
发表期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
	2015-05-05
卷号	49 期号:9 页码:5354-5362
关键词	East China Sea Persistent Organic Pollutants Polycyclic Aromatic-hydrocarbons Polychlorinated-biphenyls Pcbs Chain Chlorinated Paraffins Adjacent Arctic Region Chemical Property Data North Pacific-ocean Water Gas-exchange Atlantic-ocean
DOI	10.1021/es505084j
产权排序	[Lin, Tian] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China; [Guo, Zhigang; Li, Yuanyuan; Ma, Chuanliang] Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China; [Nizzetto, Luca] Masaryk Univ, Res Ctr Tox Cpds Environm RECETOX, Brno 62500, Czech Republic; [Nizzetto, Luca] Norwegian Inst Water Res NIVA, N-0349 Oslo, Norway; [Chen, Yingjun] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
作者部门	中科院海岸带环境过程与生态修复重点实验室
英文摘要	Gaseous exchange fluxes of organochlorine pesticides (OCPs) across the air-water interface of the coastal East China Sea were determined in order to assess whether the contaminated plume of the Yangtze River could be an important regional source of OCPs to the atmosphere. Hexachlorocyclohexanes (HCHs), chlordane compounds (CHLs), and dichlorodiphenyltrichloroethanes (DDTs) were the most frequently detected OCPs in air and water. Air-water exchange was mainly characterized by net volatilization for all measured OCPs. The net gaseous exchange flux ranged 10-240 ng/(m(2).day) for gamma-HCH, 60-370 ng/(m(2).day) for trans-CHL, 97-410 ng/(m(2).day) for cis-CHL, and similar to 0 (e.g., equilibrium) to 490 ng/(m(2).day) for p,p'-DDE. We found that the plume of the large contaminated river can serve as a significant regional secondary atmospheric source of legacy contaminants released in the catchment. In particular, the sediment plume represented the relevant source of DDT compounds (especially p,p'-DDE) sustaining net degassing when clean air masses from the open ocean reached the plume area. In contrast, a mass balance showed that, for HCHs, contaminated river discharge (water and sediment) plumes were capable of sustaining volatilization throughout the year. These results demonstrate the inconsistencies in the fate of HCHs and DDTs in this large estuarine system with declining primary sources.; Gaseous exchange fluxes of organochlorine pesticides (OCPs) across the air-water interface of the coastal East China Sea were determined in order to assess whether the contaminated plume of the Yangtze River could be an important regional source of OCPs to the atmosphere. Hexachlorocyclohexanes (HCHs), chlordane compounds (CHLs), and dichlorodiphenyltrichloroethanes (DDTs) were the most frequently detected OCPs in air and water. Air-water exchange was mainly characterized by net volatilization for all measured OCPs. The net gaseous exchange flux ranged 10-240 ng/(m(2).day) for gamma-HCH, 60-370 ng/(m(2).day) for trans-CHL, 97-410 ng/(m(2).day) for cis-CHL, and similar to 0 (e.g., equilibrium) to 490 ng/(m(2).day) for p,p'-DDE. We found that the plume of the large contaminated river can serve as a significant regional secondary atmospheric source of legacy contaminants released in the catchment. In particular, the sediment plume represented the relevant source of DDT compounds (especially p,p'-DDE) sustaining net degassing when clean air masses from the open ocean reached the plume area. In contrast, a mass balance showed that, for HCHs, contaminated river discharge (water and sediment) plumes were capable of sustaining volatilization throughout the year. These results demonstrate the inconsistencies in the fate of HCHs and DDTs in this large estuarine system with declining primary sources.
文章类型	Article
资助机构	Engineering ; Environmental Sciences & Ecology
收录类别	SCI
语种	英语
关键词[WOS]	EAST CHINA SEA ; PERSISTENT ORGANIC POLLUTANTS ; POLYCYCLIC AROMATIC-HYDROCARBONS ; POLYCHLORINATED-BIPHENYLS PCBS ; CHAIN CHLORINATED PARAFFINS ; ADJACENT ARCTIC REGION ; CHEMICAL PROPERTY DATA ; NORTH PACIFIC-OCEAN ; WATER GAS-EXCHANGE ; ATLANTIC-OCEAN
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:000354155800014
引用统计	被引频次：23[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/133337/8612
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Lin, T (reprint author), Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China. [email protected]
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 2.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China 3.Masaryk Univ, Res Ctr Tox Cpds Environm RECETOX, Brno 62500, Czech Republic 4.Norwegian Inst Water Res NIVA, N-0349 Oslo, Norway 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Lin, Tian,Guo, Zhigang,Li, Yuanyuan,et al. Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2015,49(9):5354-5362.
APA	Lin, Tian.,Guo, Zhigang.,Li, Yuanyuan.,Nizzetto, Luca.,Ma, Chuanliang.,...&Lin, T .(2015).Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River.ENVIRONMENTAL SCIENCE & TECHNOLOGY,49(9),5354-5362.
MLA	Lin, Tian,et al."Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River".ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.9(2015):5354-5362.

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