The researchers evaluated the water quality of Taihu Lake's littoral zone using a comprehensive water quality identification index. They analyzed factors like nitrogen, phosphorus, and oxygen levels in the water. The results showed that different areas of the lake had varying levels of contamination risk, with higher risks in certain seasons and locations. Overall, the water quality was better in some parts of the lake compared to others, with some areas being classified as severely polluted. This evaluation provides important information for improving the lake's aquatic environment.