运河水中悬浮物和底泥上有机污染物的探查

Investigation on the Organic Pollutants in Suspended Solid Particles and Sediments in the Great Canal

利用ＧＣ／ＭＳ／ＤＳ系统和保留指数，对运河（常州段）悬浮物和底泥上的有机污染物进行了概要分析。结果显示，该段河流的悬浮物和底泥上含有直链烷烃、多环芳烃、直链醛酮、烷基磺酸、苯酯类、邻苯二甲酸酯类、硝基联苯、二苯砜、醇类、羧酸类等有机污染物和致癌物。河流悬浮物和底泥上所鉴定出的有机污染物数量相当，浓度范围基本一致。同一段面底泥上的浓度稍高于悬浮物上的浓度；枯水期悬浮物上的浓度稍高于丰水期悬浮物上浓度。

A simple and effective pretreatment procedurewas developed to generally analyze the organicpollutants in suspended solid particles and sediment in the Great Canal (Changzhou part) byusing a GC/MS/DS system and a method of retention time index. The results show there wererelatively high concentrations of carcinogens andtoxic organics in suspended solid and sediment.More attention should be paid to the fact.