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题名: Concentrations and distributions of 18 organochlorine pesticides listed in the Stockholm Convention in surface sediments from the Liaohe River basin, China
作者: Gao, Li R.1;  Xia, Dan1;  Tian, Hai Z.2;  Zhang, Hai J.3;  Liu, Li D.1;  Wang, Yi W.1
关键词: surface sediment ;  Liaohe River basin ;  Organochlorine pesticides (OCPs) ;  ecotoxicological risks
刊名: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
发表日期: 2015-05-04
DOI: 10.1080/03601234.2015.1000172
卷: 50, 期:5, 页:322-330
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences ;  Public, Environmental & Occupational Health
研究领域[WOS]: Environmental Sciences & Ecology ;  Public, Environmental & Occupational Health
英文摘要: Organochlorine pesticides (OCPs) were analyzed in 26 surface sediment samples from the Liaohe River basin, and the distributions of and potential environmental risks posed by OCPs in the basin were evaluated. Eighteen OCPs listed in the Stockholm Convention were determined using isotope-dilution gas chromatography-high resolution mass spectrometry. This is the first study of hexachlorobenzene (HCB) in the Liaohe River basin sediments. The total OCP concentrations were 0.39-68.06ng g(-1) dry weight. The total alpha-, beta-, gamma-, and delta-hexachlorocyclohexane (HCH), the total dichlorodiphenyltrichloroethane (DDT - p,p '-dichlorodiphenyldichloroethane (DDD), p,p '-dichlorodiphenyldichloroethylene (DDE), o,p(')-DDT, and p,p '-DDT), and the HCB concentrations in the sediment samples were 0.1-28.48ng g(-1) (mean 4.01ng g(-1)), 0.08-6.52ng g(-1) (mean 3.07ng g(-1)), and 0.18-24.8ng g(-1) (mean 4.38ng g(-1)), respectively. The HCB concentrations were higher than the concentrations of the other OCPs, and the HCHs and HCB together were the dominant OCPs. beta-HCH was the most abundant HCH isomer. The concentrations of DDTs and other OCPs were relatively low, and the (DDE+DDD)/DDT ratios (>0.5) and DDD/DDE ratios (<1) indicated that no recent DDT inputs had occurred in the Liaohe River system. The main sources of HCHs were probably the historical production and agricultural use of HCH in the study area. The DDT and HCH concentrations were generally below or similar to the concentrations that have been found in other parts of the world. An ecotoxicological evaluation indicated that HCHs in surface sediments pose slight risks to human and ecological health in the Liaohe River basin.
关键词[WOS]: PERSISTENT ORGANIC POLLUTANTS ;  EAST CHINA ;  TECHNICAL HEXACHLOROCYCLOHEXANE ;  POLYCHLORINATED-BIPHENYLS ;  ECOLOGICAL RISK ;  HUAIHE RIVER ;  UPPER REACH ;  RESIDUES ;  PCBS ;  OCPS
语种: 英语
WOS记录号: WOS:000352296200003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146130
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Agr Univ Hebei, Coll Sci, Baoding, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China

Recommended Citation:
Gao, Li R.,Xia, Dan,Tian, Hai Z.,et al. Concentrations and distributions of 18 organochlorine pesticides listed in the Stockholm Convention in surface sediments from the Liaohe River basin, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES,2015,50(5):322-330.
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