27微克/立方米！2025年北京市PM2.5年均浓度首次降至30以下

Core Insights - Beijing has achieved a significant milestone in air quality improvement, with the annual average concentration of PM2.5 dropping below 30 micrograms per cubic meter for the first time, recorded at 27.0 micrograms per cubic meter in 2025 [2][3] - The proportion of days with good air quality has exceeded 80% for the first time, reaching 85.2%, with a total of 311 days classified as good air quality in 2025 [3] - The reduction in PM2.5 concentration represents a 69.8% decrease from 2013 levels, showcasing a substantial improvement in air quality management [3] Air Quality Improvement Metrics - The annual average PM2.5 concentration decreased from 89.5 micrograms per cubic meter in 2013 to 27.0 micrograms per cubic meter in 2025, marking an 11.5% year-on-year decline [3] - Other major pollutants also saw improvements: PM10 at 48 micrograms per cubic meter (down 11.1%), NO2 at 22 micrograms per cubic meter (down 8.3%), and O3 at 159 micrograms per cubic meter (down 7.0%) [3] - Sulfur dioxide (SO2) and carbon monoxide (CO) concentrations remained at low levels of 4 micrograms per cubic meter and 0.9 milligrams per cubic meter, respectively [3] Future Goals and Strategies - The Beijing Municipal Ecological Environment Bureau emphasizes the importance of collaborative efforts and regional cooperation in achieving sustained air quality improvements [4] - The city plans to integrate air pollution prevention into broader economic and social development strategies, focusing on green transformation and coordinated efforts to reduce pollution and carbon emissions [4] - Future initiatives will include the "0.1 microgram" action plan aimed at consolidating the achievements in air quality and promoting a "beautiful blue" vision for Beijing [4]