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北京PM2.5年均浓度四年再降两成,“十五五”怎么干?
Xin Jing Bao· 2025-11-10 04:29
Core Insights - Beijing has achieved a milestone in air quality improvement since the "14th Five-Year Plan," with PM2.5 annual average concentration decreasing from 38 micrograms per cubic meter in 2020 to 30.5 micrograms per cubic meter in 2024, marking a 19.7% reduction over four years and effectively eliminating heavy pollution days [1][2] Group 1: Air Quality Improvement - The average PM2.5 concentration in Beijing from January to September this year was 24.9 micrograms per cubic meter, a 15.0% year-on-year decrease, with 226 days classified as good air quality, an increase of 18 days compared to the previous year [2] - Compared to 2013, when the PM2.5 annual average was 89.5 micrograms per cubic meter, the heavy pollution days are projected to drop from 58 days to just 2 days by 2024, a reduction of 96.6% [2] Group 2: Governance and Management Strategies - Beijing has implemented a "0.1 microgram" action plan to enhance PM2.5 governance, focusing on a detailed management system that includes "unit governance," "source greening," and "intelligent empowerment" [3] - A monitoring network covering all districts has been established since 2018, with over 1,000 air quality monitoring stations, facilitating data sharing for better air quality assessment [3] Group 3: Emission Reduction Initiatives - The city has achieved over 50% new energy vehicle adoption this year, with monthly new energy vehicle rates for machinery remaining above 90% [4] - The introduction of clean production audits and tailored governance for enterprises has led to the establishment of 832 new green enterprises in the first eight months of this year, quadrupling last year's figures [4] Group 4: Advanced Monitoring and Response - A "three-monitoring" model has been developed to support precise management and scientific decision-making, integrating data from various sources to enhance pollution detection [6][7] - The city has established a rapid response mechanism for pollution issues, achieving a closure rate of over 17,000 problem cases since implementation [7] Group 5: Future Directions - Looking ahead to the "15th Five-Year Plan," Beijing aims to enhance multi-pollutant collaborative control, focusing on synergistic effects of pollution reduction and carbon reduction, with PM2.5 governance as a primary focus [8] - The city plans to optimize mobile source structures and promote green low-carbon transitions in industrial sources, enhancing fine governance in mega-cities [8]