CAJ | 학술논문

京杭大运河(徐州铜山段)位于南水北调东线工程路线上,利用GC-ECD检测了该段河流7个断面上的沉积物样品中的有机氯农药含量,主要检测出六六六(HCHs)、滴滴涕(DDTs)、六氯苯等.结果表明,总有机氯农药含量范围是57.80～236.65 ng·g~(-1),其中HCHs、DDTs的含量较高,分别为12.19-43.08 ng·g~(-1)和3.29～135.08 ng·g~(-1),从蔺家坝到解台闸沿程沉积物中有机氯农药的含量呈下降的趋势,显示有机氯农药的残留物可能主要来自于农田壤的残留,并且近期无新的污染源输入.
경항대운하(서주동산단)위우남수북조동선공정로선상,이용GC-ECD검측료해단하류7개단면상적침적물양품중적유궤록농약함량,주요검측출륙륙륙(HCHs)、적적체(DDTs)、륙록분등.결과표명,총유궤록농약함량범위시57.80～236.65 ng·g~(-1),기중HCHs、DDTs적함량교고,분별위12.19-43.08 ng·g~(-1)화3.29～135.08 ng·g~(-1),종린가패도해태갑연정침적물중유궤록농약적함량정하강적추세,현시유궤록농약적잔류물가능주요래자우농전양적잔류,병차근기무신적오염원수입.
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.