Core Viewpoint - In 2024, Suzhou's ecological environment is reported to have improved significantly, with air quality and water quality meeting or exceeding national standards, reflecting the city's commitment to environmental sustainability and quality improvement [1][2][3] Air Quality - The annual average PM2.5 concentration in Suzhou is reported at 29 micrograms per cubic meter, achieving the national secondary air quality standard for four consecutive years, with a good days ratio of 84.2% [1] - Suzhou ranks 4th in the province for PM2.5 annual average concentration, with all areas meeting national air quality standards [1] Water Quality - In 2024, all 13 county-level and above cities in Suzhou have drinking water source quality meeting or exceeding Class III standards, achieving all assessment targets [2] - The proportion of national monitoring sections with average water quality meeting or exceeding Class III standards is 93.3%, unchanged year-on-year, while the proportion meeting Class II standards increased by 10 percentage points to 63.3%, the highest in the province [2] - The overall water quality of Taihu Lake in Suzhou is classified as Class III, with a comprehensive nutrient state index of 50.4, indicating a mildly eutrophic state [2] Soil Quality - Monitoring of 46 general risk points in the national soil monitoring network shows that pollutant levels do not exceed the risk control standards, indicating overall stability in soil quality [2] Rural Environment - In 2024, the air quality in 11 monitored villages shows a good days ratio of 84.7%, with all 20 rural surface water monitoring sections meeting or exceeding Class III standards [3] Noise Environment - The overall noise environment quality in Suzhou remains stable, with daytime quality slightly declining and nighttime quality improving compared to 2023 [3] Solid Waste Management - By the end of 2024, Suzhou's hazardous waste utilization and disposal capacity is reported at 3.65 million tons per year, with 26,100 hazardous waste generating and operating units managed under the provincial solid waste management information system [3] Radiation Environment - Monitoring of various ionizing radiation factors indicates that levels are generally within the natural background range or below standard limits, with key drinking water sources and Taihu Lake meeting relevant standards [3]