Analysis of Water Quality Characteristics of Yangbi River in 2020 in Yangbi County

The changes of the water quality indices of each monitoring sites were analyzed according to the monitoring data of the surface water of Yangbi River in 2020. The results showed that the water quality of the river was generally good, which would reach the third grade of national standard. There are several indices that were relatively high due to the water from the upstream and the slow improvement of town sewage water treatment facilities.