界河(黑龙江)水质质量监测及水质变化趋势

针对中俄界河黑龙江与乌苏里江,全面开展了枯、平、丰水期的河流水环境现状调查,覆盖黑龙江、乌苏里江干流及主要的一级支流。基于现状水质调查结果以及已有的历史长序列水质监测资料,采用单因子污染指数法和水质综合污染指数法对水环境现状进行评价。研究表明:黑龙江干流全年以Ⅳ类水质为主,乌苏里江干流全年以Ⅲ、Ⅳ类水质为主。部分水域高锰酸盐指数和氨氮浓度偏高;支流松花江水质污染严重,以有机污染为主。

Water Quality Monitoring and Its Variation Trend of Boundary River of HeiLongjiang

We carried out water quality survey of China and Russia boundary rivers of Heilongjiang and Ussuri river and their main tributaries. We used single - factor pollution index method and water quality integrated pol- lution index method to evaluate the condition of water quality on the basis of water quality survey and water quality monitoring data of long history. The result showed that water quality of mainstream of Heilongjiang River was Ⅳ grade throughout the year mainly, water quality of main stream of the Ussuri River was Ⅲ and Ⅳ grade throughout the year mainly. Part of the waters, Permanganate index and ammonia concentration of part water ar- ea was higher. The tributary of Songhua River was polluted by organic pollutants seriously.