【摘要】 我们于1993-1995年对牡丹江进行了污染源监测，沿江不同江段设采样点采样进行水质分析，本文根据数理统计的方法，结合水质参数各自对水环境质量的影响，采用半集均方差模式对该江进行污染现状评价，其结果：WQI值为10.285，该江已污染。更多还原

【Abstract】 From 1993 to 1995, we monitored about the contamination in Mudan river, and examexamined the water quality of different places along the river. In this paper, We evaluated the contamination condition about Mudan rever by mathematical statistics, conjoining each water quality parameter of the quality of water enviroment and assembly mean variance. The result showes thatthe river has been contaminated seriously(I = 10. 285 ).更多还原