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松辽流域河流表层沉积物中有机氯农药的分布特征
引用本文:王浩正,何孟常,林春野,全向春,郭伟.松辽流域河流表层沉积物中有机氯农药的分布特征[J].应用生态学报,2007,18(7):1523-1527.
作者姓名:王浩正  何孟常  林春野  全向春  郭伟
作者单位:北京师范大学环境学院水环境模拟国家重点实验室,北京,100875
基金项目:国家重点基础研究发展计划(973计划)
摘    要:利用气相色谱-电子捕获检测器(gas chromatography-electron capture detector,GC-ECD)对松辽流域重点污染河流22个表层沉积物样品的13种有机氯农药进行了分析.结果表明,大辽河流域有机氯农药含量为3.06~23.24 ng·g-1,松花江流域为4.26~18.45 ng·g-1.松辽流域沉积物中主要有机氯农药为六六六(HCH),松花江流域和大辽河流域表现出了不同的污染趋势.松花江沉积物中也有较高的滴滴涕(DDT)残留量.整个松辽流域都有较高含量的丙体六六六(γ-HCH),超过了其初始效应浓度,可能对该地区水生生物产生毒性效应.

关 键 词:分布特征  有机氯农药  表层沉积物  松辽流域
文章编号:1001-9332(2007)07-1523-05
收稿时间:2006-5-15
修稿时间:2006-05-152007-04-05

Distribution characteristics of organochlorine pesticides in river surface sedim ents in Song-Liao Watershed.
WANG Hao-zheng,HE Meng-chang,LIN Chun-ye,QUAN Xiang-chun,GUO Wei.Distribution characteristics of organochlorine pesticides in river surface sedim ents in Song-Liao Watershed.[J].Chinese Journal of Applied Ecology,2007,18(7):1523-1527.
Authors:WANG Hao-zheng  HE Meng-chang  LIN Chun-ye  QUAN Xiang-chun  GUO Wei
Institution:State Key Laboratory of Water Environment Simulation, School of Environment, Belting Normal University, Beijing 100875, China
Abstract:With gas chromatography-electron capture detector (GC-ECD), this paper analyzed 13 kinds of organochlorinae pesticides (OCP) in surface sediments collected from 22 sites of Song-Liao water system. The results showed that the total concentration of OCP varied from 3.06 to 23.24 ng x g(-1) in Daliao River system and from 4.26 to 18.45 ng x g(-1) in Songhuajiang River system. The most dominant OCP pollutant in the sediments in Song-Liao Watershed was HCH, but there existed different pollution tendency in the two subsystems. In Songhuajiang River, there were also relatively high concentrations of DDT. High concentration gamma-HCH was observed among the isomers of HCH in the whole watershed, which exceeded the initial affecting concentration and could potentially do toxic effect on the water creatures.
Keywords:distribution characteristics  organochlorinae pesticides (OCP)  surface sediments  Song-Liao Watershed  
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