石笋沟水质现状评价

Water Quality Assessment of Shisun River

依据2018年至2020年调查监测数据,用单因子评价法和综合污染指数法,从水质定性评价、定量评价和主要污染物识别3个方面,对石笋沟水质现状进行评价。结果显示,石笋沟水质实达类别为Ⅰ类,水质状况优,达到规定的水质保护目标;平均值综合污染指数为2.09,单次监测综合污染指数在1.78~2.51范围内;影响水质状况的主要指标为溶解氧、化学需氧量和五日生化需氧量。

Based on the investigation monitoring data from 2018 to 2020,the paper analyses water quality of Shisun River qualitatively and quantificationally,and finded the main pollution factors by single factor evaluation method and comprehensive pollution index method.The results show that the water quality of the river was ClassⅠstandard,and water quality status was excellent,which attains the water quality protection target.The comprehensive pollution index of the mean value was 2.09,comprehensive pollution index of every monitoring was between 1.78 and 2.51.The main pollution factors affecting the river were the dissolved oxygen,chemical oxygen demand and five days biochemical oxygen demand.