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A spatial temporal assessment of pollution from PCBs in China
文献类型：会议论文
| 作者 | Xing, X; Lu, YL; Dawson, RW; Shi, YJ; Zhang, H; Wang, TY; Liu, WB; Ren, HC |
| 出版日期 | 2005 |
| 会议名称 | 2nd International Workshop on Strengthening Science-Based Decision Making to Reduce Risks from Persistent Organic Pollutants |
| 会议日期 | JUN 07-10, 2004 |
| 会议地点 | Beijing, PEOPLES R CHINA |
| 关键词 | persistent organic pollutants (POPs) environmental media distribution pollution China |
| 英文摘要 | This research represents an assessment of the current state of pollution from polychlorinated biphenyls (PCBs) in China. Various environmental media including sediment, water, organism and soil were analyzed and the spatial character of PCB pollution in each environmental medium was determined. On a national basis, PCB levels in all environmental media were relatively low, with little evidence of major contamination in China's main regions and rivers. However, there were some locations with high PCB concentrations. Sediments in Pearl River (83.1 ng/g) and its estuary (58.9 ng/g), Dalian Bay (58.1 ng/g) and Songhua River (36.8 ng/g) had relatively high level of PCBs. There were also some areas, which were mainly the industrial pollution sites or PCB equipment storage locations, remained seriously polluted with the highest PCB residue level of 150000 ng/g. In addition, Minjiang Estuary (985.2 ng/g) and Taihu Lake (631 ng/g) had high levels of water pollution, while Pearl Estuary (635.7 ng/g) and Jiaozhou Bay (273.3 ng/g) had relatively high PCB levels in organisms. PCB pollution in soil was limited to a few special pollution areas with the highest PCB level of 4.5448 x 10(6) ng/g. Point source pollution was the common pattern of contamination, influenced primarily by local geographic, economic and historical factors. Analysis of PCB concentrations from the 1980s to 1990s shows an increasing trend, possibly due to the improper disposal of and leakage from PCB containers, chemical transfers, and the general rise of industrial pollution. (C) 2005 Elsevier Ltd. All rights reserved. |
| ISSN号 | 0045-6535 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24753]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xing, X,Lu, YL,Dawson, RW,et al. A spatial temporal assessment of pollution from PCBs in China[C]. 见:2nd International Workshop on Strengthening Science-Based Decision Making to Reduce Risks from Persistent Organic Pollutants. Beijing, PEOPLES R CHINA. JUN 07-10, 2004. |
入库方式： OAI收割
来源：生态环境研究中心
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