Status of Water Environment Quality in the Middle Part of the Chishui River

The results showed that the overall water quality was very well in the middle of the Chishui river by analyzing and evaluating water quality of ten sections of the river.The correlation among the indicators showed that the main pollution sources were mainly from a fixed one or a few in Chishui River basin.After the effective control of pollution,the water quality continued remaining stable at a level of excellence.Each indicator fluctuated greatly with the water season.It should be continued to strengthen water quality monitoring and management of the dry season to ensure that the water quality kept at a steady level of excellence.