Concentrations and distributions of 18 organochlorine pesticides listed in the Stockholm Convention in surface sediments from the Liaohe River basin, China
文献类型：期刊论文
| 作者 | Gao, Li R.; Xia, Dan; Tian, Hai Z.; Zhang, Hai J.; Liu, Li D.; Wang, Yi W. |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
 |
| 出版日期 | 2015-05-04 |
| 卷号 | 50期号:5页码:322-330 |
| 关键词 | surface sediment Liaohe River basin Organochlorine pesticides (OCPs) ecotoxicological risks |
| 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. |
| 研究领域[WOS] | Environmental Sciences ; Public, Environmental & Occupational Health |
| WOS记录号 | WOS:000352296200003 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32543]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | 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. |
| APA | Gao, Li R.,Xia, Dan,Tian, Hai Z.,Zhang, Hai J.,Liu, Li D.,&Wang, Yi W..(2015).Concentrations and distributions of 18 organochlorine pesticides listed in the Stockholm Convention in surface sediments from the Liaohe River basin, China.JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES,50(5),322-330. |
| MLA | Gao, Li R.,et al."Concentrations and distributions of 18 organochlorine pesticides listed in the Stockholm Convention in surface sediments from the Liaohe River basin, China".JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES 50.5(2015):322-330. |
入库方式： OAI收割
来源：生态环境研究中心
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