“十一五”期间松花江肇源江段高锰酸盐指数分析研究

Analysis on Permanganate Index of Songhua River Zhaoyuan Section during “11th Five-year Plan”

高锰酸盐指数是反应水域污染状况的一个重要指标,本文对"十一五"期间肇源境内的干流三个断面和支流两个断面的高锰酸盐指数监测数据进行研究分析,结果显示:"十一五"期间,松花江肇源境内高锰酸盐指数浓度呈现出显著的下降趋势;各水期肇源境内松花江干流的两大支流拉林河和嫩江主要污染因子高锰酸盐指数浓度也呈下降趋势;2010年肇源境内松花江干流高锰酸盐指数浓度出境段面高于入境断面,支流河口浓度低于松花江干流肇源江段。

Permanganate index is an important index for analyzing water pollution conditions. This paper analyzed the monito- ring data of permanganate index collected from three main sections and two tributaries sections in Zhaoyuan City during the period of ＂1 lth Five - year Plan＂. The results showed that during the period of ＂1 lth Five - year Plan＂, the permanganate concentration in Songhua River＇s Zhaoyuan section presents a significant declining trend. The water phase of the main stream of Songhua River in Zhaoyuan and two tributaries Lalin and Nenjiang is a downward trend. In 2010, the potassium permanganate concentration in influx of the research river section is higher than the out flux. The concentration in tributary is lower than the trunk stream of Songhua River.