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题名:
Levels and Mass Burden of DDTs in Sediments from Fishing Harbors: The Importance of DDT-Containing Antifouling Paint to the Coastal Environment of China
作者: Lin, Tian1; Hu, Zhaohui1; Zhang, Gan1; Li, Xiangdong3; Xu, Weihai4; Tang, JianHui(唐建辉); Li, Jun1
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN号: 0013-936X
出版日期: 2009-11-01
卷号: 43, 期号:21, 页码:8033-8038
关键词: PEARL RIVER DELTA ; POLYCYCLIC AROMATIC-HYDROCARBONS ; POLYBROMINATED DIPHENYL ETHERS ; ORGANOCHLORINE PESTICIDES ; SOUTH CHINA ; ORGANIC POLLUTANTS ; REGIONAL SOURCES ; NORTH CHINA ; HONG-KONG ; FOOD-WEB
学科分类: Engineering, Environmental; Environmental Sciences
产权排序: Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem; Chinese Acad Sci, Yantai Inst Coastal Zone Res;Hong Kong Polytech Univ, Dept Civil & Struct Engn;Chinese Acad Sci, S China Sea Inst Oceanol
通讯作者: Zhang, G, Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
作者部门: 污染过程与控制实验室
英文摘要: DDT remains an important type of persistent organic pollutant (POP) in the environment of China. One of the current applications of DDT in China has been through antifouling paint for fishing ships as an active component. It has been estimated that approximately 5000 t of DDT was released into the Chinese coastal environment during the last two decades. Therefore, sediments in coastal fishing harbors of China may be the important sinks of DDT. In this study, DDT and its metabolites in 58 sediment samples from nine typical fishing harbors along the coastal line of China were characterized to assess their accumulation levels, sediment burdens, and potential ecological risks. The concentrations of DOTS ranged from 9 to 7350 ng/g dry weight, which were generally 1-2 orders of magnitude higher than those of the adjacent estuarine/marine sediments. The high concentrations of DDT coupled with the lower concentrations of HCH and TOC clearly indicated a strong local DDT input, i.e., DDT-containing antifouling paint, within the fishing harbors. A significant correlation between the total DDT concentrations and p,p'-DDT concentrations further confirmed the existence of fresh DDT input. The overall burden of DOTS within the upper 10 cm sediment layer in the fishing harbors of the Pearl River Delta, southern China, was estimated to be 1.0-5.7 t, which was several times higher than the DDT accumulation in the surface sediment of the Pearl River estuary. The concentrations of DOTS in the fishing harbor sediments significantly exceeded the sediment quality guidelines on the basis of adverse biological effects. The absence or low concentrations of p,p'-DDD in aquatic organisms and human may imply that either p,p'-DDD may be less bioaccumulated by fish and human, or is biotransformed to other metabolites. A national ban of DDT as an additive to antifouling paint was implemented in 2009 in China; however, the legacy high DDT burden in the coastal fishing harbors needs further monitoring and proper management.
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology
关键词[WOS]: PEARL RIVER DELTA ; POLYCYCLIC AROMATIC-HYDROCARBONS ; POLYBROMINATED DIPHENYL ETHERS ; ORGANOCHLORINE PESTICIDES ; SOUTH CHINA ; ORGANIC POLLUTANTS ; REGIONAL SOURCES ; NORTH CHINA ; HONG-KONG ; FOOD-WEB
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000271106300013
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/3537
Appears in Collections:污染过程与控制实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
3.Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China
4.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510250, Guangdong, Peoples R China

Recommended Citation:
Lin, Tian,Hu, Zhaohui,Zhang, Gan,et al. Levels and Mass Burden of DDTs in Sediments from Fishing Harbors: The Importance of DDT-Containing Antifouling Paint to the Coastal Environment of China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2009,43(21):8033-8038.
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