Group 1: Water Quality Improvement - The water quality in the Yangtze River Economic Belt has improved significantly, with the proportion of good water quality rising from 67% to 96.5% over the past decade [1] - In Chongqing, the proportion of good water quality at national control sections has maintained 100% for three consecutive years, and the water quality in the Yangtze River's Chongqing section has been rated excellent for nine consecutive years, outperforming the average level of the Yangtze River Economic Belt [2] - The implementation of a ten-year fishing ban has led to an increase of nearly 60 fish species in the Yangtze River, indicating successful ecological restoration [2] Group 2: Air Quality Monitoring and Improvement - Chongqing has established 177 automatic air quality monitoring stations to assess air quality and identify pollution sources, utilizing satellite data, drones, and mobile monitoring equipment for comprehensive pollution tracking [2] - The number of days with good air quality in Chongqing has exceeded 325 for six consecutive years, with an average increase of 15 days during the 14th Five-Year Plan period compared to the 13th [3] - The annual average concentration of PM2.5 has decreased by 20% during the same period, reflecting significant improvements in air quality [3]