洱海水质分析及综合评价

Water Quality Analysis and Comprehensive Assessment of Erhai Lake

本文择取整理了１９８０－１９９０年洱海水质监测资料，选用ｐＨ、溶解氧、ＢＯＤ５、高锰酸盐指数、ＴＮ和ＴＰ６个项目，分析和综合评价洱海水质在枯、丰、平不同水文期的质量及变化规律。洱海水质在平水期属Ⅰ类，丰水期属Ⅱ类、枯水期属Ⅲ类。

With reference to the water quality monitoring materials of Erhai Lake from 1980 to 1990 as well as the index of pH,DO,BOD 5,permanganate,TN and TP,analysis and assessment are made on the quality and fluctuating principles of water in Erhai Lake at dry season,wet season and level period.As a result,the water quality in Erhai Lake is determined as level 1 at level period,level 2 at wet season and level 3 at dry season.