农业环境科学学报2009，Vol.28Issue(10)：2151-2154,4.
京杭大运河(徐州铜山段)沉积物表层样品中有机氯农药残留状况
Residual State of Organocldorine Pesticides in Surface Samples of Sediments from Beijing-Hangzhou Grand Canal(Tongshan Xuzhou Section)
摘要
Abstract
Beijing-Hangzhou Grand Canal is located in the Eastern Route Project for Transferring Water from Southern to Northern China, the water quality of it directly affects the transferring water quality. Organochlorine pesticides (OCPs ) in seven sediment samples from Beijing-Hangzhou Grand Canal(Tongshan Xuzhou section) were analyzed by GC-ECD in this paper. The OCPs detected were comprised mainly of HCHs, DDTs, hexachlorobenzene etc. The range of total OCPs concentration was 57.80～236.65 ng·g~(-1). The concentrations of HCHs and DDTs were much higher than the other compounds and varied from 12.19～43.08 ng·g~(-1) and 3.29～135.08 ng·g~(-1), with the average of 24.69 ng·g~(-1) and 32.25 ng·g~(-1), respectively. Contamination level of OCPs in sediments decreased from Linjia Dam to Xietai Gateway. Compared with the foreign and national rivers, concentrations oT HCHs and DDTs in sediments from Beijing-Hangzhou Grand Canal (Tongshan Xuzhou section) were higher, which illustrated that the contamination of OCPs was serious in Beijing-Hangzhou Grand Canal (Tongshan Xuzhou sec-tion). And the results indicated that the residue of OCPs might mainly come from the use of pesticide in agriculture in history and the soil of farmland, and there was no new pollution source into the river recently.关键词
京杭大运河/沉积物/有机氯农药Key words
Beijing-Hangzhou Grand Canal/ sediment/ organochlorine pesticides分类
资源环境引用本文复制引用
项玮,韩宝平,许爱芹..京杭大运河(徐州铜山段)沉积物表层样品中有机氯农药残留状况[J].农业环境科学学报,2009,28(10):2151-2154,4.基金项目
江苏省自然科学基金(BK2008121) （BK2008121）
