乌海空气质量多项指标创历史最优

Group 1 - In 2025, Uihai City achieved significant improvements in air quality, with a comprehensive air quality index dropping to 3.74, marking a historical low [1] - PM10 concentration reached the national secondary standard for the first time at 67 micrograms per cubic meter, while PM2.5 annual average concentration hit a record low of 24 micrograms per cubic meter, meeting the WHO's second stage standard [1] - The city recorded 304 days of good air quality, with a good days ratio of 83.3%, indicating a consistent presence of blue skies [1] Group 2 - Uihai City implemented a comprehensive ecological remediation strategy, focusing on five key areas and the Yellow River, with 43 long-term mechanisms established [2] - Specific measures were taken in the coking industry, including strict adherence to low emission standards and expert assistance for coking enterprises, resulting in 261 improvement suggestions and full completion of low emission upgrades for eight coking companies [2] - The city also initiated four volatile organic compounds (VOCs) management projects and conducted thorough inspections of 5,525 non-road mobile machinery across 320 enterprises to control mobile source pollution [2] Group 3 - Uihai City established regional cooperation agreements for joint prevention and control of air pollution with neighboring areas, enhancing collaborative pollution management efforts [3]