第二松花江水体沉积物中难降解污染物的种类和含量

Sorts and contents of persistent pollutants in the sediment samples of the Second Songhua River.

针对第二松花江吉林市段的污染状况，在不同江段采集了沉积物，并利用气相色谱、气相色谱质谱和等离子体色谱分别对其中的有机氯农药、多氯联苯（ＰＣＢｓ）、其它难降解有机污染物及重金属进行了定量分析。从分析结果可以看出，吉林化学工业公司污水处理厂排放口附近江段为第二松花江吉林市段污染最严重的江段。污染源主要来自吉林化学工业公司排放的工业废水。这一江段沉积物中的污染物将长期存在，并对下游江段造成一定的污染。因此。

In order to evaluate the pollution of the Second Songhua River,four sediment samples were taken along the river in Jilin area and PCBs,organochlorine pesticides,other persistent organics and heavy metals were quantitatively analyzed.The results indicate that the reach of the river near the discharge point of the sewage of Jilin Chemical Engineering Company is the most heavily polluted part of the Second Songhua River.The source of pollution comes from the industrial wastewater of Jilin Chemical Engineering Company.Pollutants in the sediment of this reach of the river will be existing for a long time and cause pollution at the downstream reach of the river,so more strict regulation should be carried out to control the disposition and discharge of the industrial wastewater from Jilin Chemical Engineering Company.