第二松花江(哈达湾-松花江村段)沉积物中有机物污染研究

本文所研究江段的有机污染物主要来自两岸工业排放的废水、生活污水、工业废弃物及生活垃圾。污染源主要位于右岸,上游右岸沉积物中有机污染物的总浓度高于左岸,下游两岸沉积物中有机污染物的总浓度趋于一致。两岸沉积物中污染物总浓度随距离的变化规律如下: 右岸:C=92.044S~(-0.3028) R=-0.962 左岸:C=9.231e~(-0.0058) R=0.946 在该江段沉积物中共检出51种有机污染物。其中致癌、可疑致癌、致突变化合物25种,占检出化合物的49％。淤泥质沉积物中有机污染物的存在量60.67吨,岸边滩及心滩土壤中存在量138.2吨。

A STUDY ON THE ORGANIC POLLUTANTS IN THE SEDIMENTS OF THE SECOND SONG HUA RIVER

The sediments, which collected on the banks and bottom of the Second Song Hua River, distributed from the section Ha Dawan to the section Song hua jang cun, 166km long.The organic pollutants in the sediments came from solid wastes and wastewater of industral and civil along the river.Most pollution sourcer were at the river's rigth bank. At upper course of the river, total concentration of the pollutants in the sediments near the rigth band higher than near the left bank. At lower, the total concentration of the pollutants near both banks were almost equal. On both bands, the change of the concentration of the pollutants to the change of the distance can be discribed by an quation; Right bank: C = 92. 044S-0.3028 (r= -0.962)Left bank: C = 9.231e-0.005s (r== 0.946)In the sediments of the Second Song Hua River, 51 organic pollutants had been determined, 25 organic pollutant of them,49 per cent, were carcinogens, suspect carcinogens and mutagens.In the sediments on the bottom of the river, the quantity of the organic pollutants estimated 60.67 tons. In the sediments on the both bath and on the beach of the isles in the river, the quantity of the organic pollutants was estimated 138. 2 tons.