Distribution Characteristics of Organochlorine Pesticides in Western Songnen Plain, China
文献类型：会议论文
| 作者 | Yan Baixing ; Cao Huicong ; Luan Zhaoqing |
| 出版日期 | 2009 |
| 会议名称 | International Symposium on Environmental Science and Technology |
| 会议日期 | JUN 02-05, 2009 |
| 会议地点 | Shanghai, PEOPLES R CHINA |
| 关键词 | agricultural runoff BHC DDT western Songnen Plain mallard eggs |
| 英文摘要 | Concentrations of hexachlorocyclohexane (BHC) metabolites and dichlorodiphenyltrichloroethane (DDT) derivatives in the soil, runoff from paddy and dry land as well. as mallard eggs in western Songnen Plain were invesdgated. The concentrations of BHC and DDT in soil and runoff were low and beta-BHC accountin gfor 73.5%-99.5% of the total BHC concentrations was the main metabolite of BHC in runoff, and four metabolites descended in the order; beta>alpha>gamma>delta. DDT is still used locally as p, p'-DDT was detected in the study area. Dissoluble fraction was the dominant form of metabolites and derivatives, and the particle size of suspended substance had significant effect on the pesticide residues in runoff. There were organochlorine pesticides (OCPs) accumulated in the mallard eggs in Songnen Plain, and the residue levels of OCPs were at the same order of magnitude as that in topsoil and suspended substance, but one order of magnitude higher than that of runoff and return flow in farmland. For organism, especially benthon, DDT concentrations posed low ecological risk, while BHC had potential ecological risk in suspended substance of return flow in paddy field. |
| 会议主办者 | Chinese Soc Environm Sci, Beijing Inst Technol, Donghua Univ, Key Lab Explos Sci & Technol |
| 会议录 | PROGRESS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, VOL II, PTS A AND B
 |
| 会议录出版者 | SCIENCE PRESS BEIJING |
| 会议录出版地 | BEIJING |
| 语种 | 英语 |
| 源URL | [http://159.226.123.10/handle/322005/4743]  |
| 专题 | 东北地理与农业生态研究所_合作研究组 |
| 推荐引用方式 GB/T 7714 | Yan Baixing,Cao Huicong,Luan Zhaoqing. Distribution Characteristics of Organochlorine Pesticides in Western Songnen Plain, China[C]. 见:International Symposium on Environmental Science and Technology. Shanghai, PEOPLES R CHINA. JUN 02-05, 2009. |
入库方式： OAI收割
来源：东北地理与农业生态研究所
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