2025年全国环境空气质量为历史最优

Core Viewpoint - The Ministry of Ecology and Environment of China aims to achieve the best historical air quality by 2025, focusing on a continuous reduction in PM2.5 concentrations and implementing key emission reduction projects and special governance actions [1][2] Group 1: Air Quality Goals - By 2025, the average PM2.5 concentration in cities at or above the prefecture level is targeted to be 28 micrograms per cubic meter, with a good air quality day ratio of 89.3% (excluding dust influence) and heavy pollution day ratio of 0.9%, marking the best levels since monitoring began [1] - During the 14th Five-Year Plan period, PM2.5 concentrations are expected to decrease by 20%, with the number of cities meeting air quality standards increasing from 206 to 246 [2] Group 2: Regional Improvements - The ten provinces with the lowest PM2.5 concentrations by 2025 will have seven from the southern region, while the ten provinces with the most significant improvement are all in the northern region [2] - The average PM2.5 concentration in 29 cities with a GDP exceeding 1 trillion yuan is projected to be 27.8 micrograms per cubic meter, better than the national average and showing significant improvement [2] Group 3: Structural Transformation - The 14th Five-Year Plan promotes green and low-carbon transformations in industry, energy, and transportation, including the completion of significant emission reduction projects in steel, cement, and coal power sectors [2] - The strategy includes optimizing three major regions: Beijing-Tianjin-Hebei and surrounding areas, Fenwei Plain, and the Yangtze River Delta, while enhancing governance effectiveness in key urban clusters [2]