全国仍有六成城市PM2.5年均浓度高于25微克/立方米，与美丽中国建设目标尚有差距。 生态环境部新发布的《环境空气质量标准》将于3月1日正式实施。这是我国自2012年以来首次全面收紧 国家空气质量标准，细微颗粒（PM2.5）再次成为本次修订的重点关注对象，旨在巩固并扩大近年来空 气质量改善的成果。修订后，PM2.5年均浓度二级限值从35微克/立方米调整为25微克/立方米。 六成城市PM2.5浓度仍超25微克/立方米 据介绍，新标准实施设置五年过渡期，旨在为结构调整和源头减排等根本性治理举措提供充足时间。 空气质量达历史最优 从2013年《大气污染防治行动计划》（"大气十条"）到2018年《打赢蓝天保卫战三年行动计划》，再到 2023年《空气质量持续改善行动计划》，我国大气污染治理政策体系持续深化。通过结构性减排，推动 高耗能、高排放发展模式向绿色、循环、低碳转型，目前已取得阶段性成效。 "新标准设置了五年过渡期，目的是为结构调整、源头减排等治本之策留出足够的缓冲时间和空间。修 订标准体现的是空气质量改善的目标和方向，并不意味着要求各地立即达标。何时达标、如何达标，将 通过科学设定的路径和措施，力求'跳一跳够得 ...

2月24日晚，生态环境部发布《环境空气质量标准》（GB 3095—2026）（以下简称《标准》）。记者注意到，在 上一版《环境空气质量标准》中，细颗粒物（PM2.5）年均浓度二级限值为35微克/立方米。新版《标准》将这一 限值调整为25微克/立方米，2026年3月1日起至2030年12月31日，执行过渡阶段浓度限值，即30微克/立方米。 新版《标准》调整了PM2.5等污染物的浓度限制。图/生态环境部微信公众号 提高浓度限值要求，逐步接轨国际先进水平 生态环境部大气环境司有关负责人表示，党的十八大以来，我国在经济高速发展的同时，PM2.5年均浓度从2013 年的68微克/立方米下降到2025年的28微克/立方米，成为全球空气质量改善速度最快的国家。上一版《标准》于 2012年发布，自实施以来，对我国持续深入打好蓝天保卫战、保障人民群众身体健康发挥了重要引领作用。 党的二十届四中全会将美丽中国建设取得新的重大进展作为"十五五"时期经济社会发展的主要目标之一。此时修 订《标准》，一是进一步保障人民群众身体健康。国内外研究成果都表明，PM2.5是全球空气污染疾病负担的最 大驱动因素；世界卫生组织于2021年更新《全球 ...

衡量一座城市的"气质"，PM2.5浓度与空气质量优良率是两项硬指标。 2025年1月至11月，浙江省杭州市区交出了一份亮眼"成绩单"：全市PM2.5浓度为27.9微克/立方米，较去 年同期改善2.1%，远优于35微克/立方米的国家标准；空气质量优良天数比例达85.9%，同比上升5个百 分点。 这两项关键指标的显著进步，标志着杭州大气污染治理迈入新阶段。 健全机制 打响精准"科技战" 大气治理是一项复杂的系统工程，杭州为此建立了高位协调、齐抓共管的工作机制。据了解，由分管副 市长每月主持召开的全市空气质量提质进位工作例会，已成为常态化制度。会议不仅系统总结前期工作 成效，更直面问题短板，对治理难点、堵点进行现场点评和协调，有效压实各方责任，推动形成"一盘 棋"治气大格局。 "这种高频次的调度和督导，让各责任单位保持高度警觉，治气的合力空前凝聚。"市生态环境局相关负 责人表示。 杭州的"蓝天保卫战"是一场精准的"科技战"。长期以来，全市以工程减排、结构减排、管理减排为抓 手，排定并实施1029个治气减排项目，从源头深挖潜力，降低本地污染物排放总量。 结构减排是治本之策。杭州聚焦移动源这一污染"大户"，加速推进"两 ...

Group 1 - The core viewpoint of the articles highlights Shaanxi's commitment to air pollution control, aiming for significant improvements in air quality by 2025, including a PM2.5 concentration below 35 micrograms per cubic meter, achieving a 10.8% year-on-year improvement to 31.4 micrograms per cubic meter [1][2] - Shaanxi plans to achieve its first-ever compliance with national air quality standards in seven cities and exceed 300 days of good air quality, reaching 302.4 days [1] - The province's strategy includes reducing coal usage, with targeted adjustments for 128 key industrial enterprises in the Guanzhong area, and increasing subsidies for clean heating in rural households from 300 yuan to 600 yuan [1] Group 2 - Industrial emissions reduction is emphasized as a core focus, with 95% of crude steel capacity and 91% of cement clinker capacity in the Guanzhong area completing ultra-low emission transformations [2] - By 2025, Shaanxi aims to add 117 enterprises with B-level or above environmental performance, bringing the total to 323 [2] - The province has implemented a "whitelist" system for 520 key enterprises to balance environmental protection with economic growth, and has eliminated 32,000 old diesel trucks to control mobile source pollution [2]

中新网广州2月7日电 题：从"广州蓝"到"全运蓝" 广州多举措守牢生态颜值 蓝天下的广州珠江新城(资料图)。王坚 摄 列，中心城区公交、出租车实现100%电动化，网约车电动化率达99%，绿色出行比例提升至82%，构建 起绿色低碳的出行体系。 中新网记者 王坚 同时，针对工业源、移动源、扬尘源三大污染源头，广州深化"三源共治"，靶向施策破解治理难题。 2021至2024年，广州累计完成挥发性有机物减排1.1万吨、氮氧化物减排2.4万吨，主要污染物减排量居 全省首位，实现"增产不增污、发展不减绿"。 "十四五"以来，广州锚定"系统治气、全域提质"路径，以"微克攻坚"绘就生态底色，用"久久为功"擦亮 城市名片，让常态化的"广州蓝"与十五运会专属的"全运蓝"交相辉映、双向赋能。 广州这场蓝天保卫战不仅圆满护航十五运会、残特奥会，更将生态优势转化为城市发展势能，为绿美广 州建设写下生动注脚。 广州市生态环境局介绍，"十四五"时期是该市大气污染防治的深化攻坚期，全市空气质量实现从"稳步 改善"到"稳定优良"的关键跨越。数据显示，"十四五"期间PM2.5平均浓度较"十三五"期间显著下降 30.1%，PM10、NO₂、SO₂ ...

精准攻坚，筑牢扬尘防护墙 2025年，罗湖区环境空气质量实现历史性突破，PM2.5浓度下降至14.4微克/立方米，为有监测数据以来最优水平，并首次达到世界卫生 组织第三阶段过渡期标准（15微克/立方米），成为高密度建成区中首个达成此目标的辖区，多项指标排名全市前列，生动诠释了经济 发展与环境保护协同共进的"罗湖实践"。 监测数据是环境质量最客观的"晴雨表"，也是治理成效最直接的"度量衡"。据监测数据显示，2025年罗湖区环境空气质量全面优化： PM2.5浓度为14.4微克/立方米，同比下降1.3微克/立方米；PM10浓度为27微克/立方米，同比下降2微克/立方米；臭氧浓度为126微克/立 方米，同比下降8微克/立方米，降幅均位列全市榜首；空气优良率达99.2%，全市最优，同比提升1.7个百分点；空气质量为优的天数 达252天，占比69%，较2024年同期提升8.9个百分点。一系列指标位居深圳市前列，标志着罗湖区大气治理从量变开始迈向质变，交 出了一份人民满意、可感可及的生态答卷。 协同共治，织密立体防控网 在技术创新方面，罗湖区积极引入高标准工程措施。玉龙填埋场环境修复工程采用的巨型"天幕"系统，集中体现了" ...

Group 1 - The core viewpoint of the article highlights the improvement in air quality in Chifeng City, with a target of 354 days of good air quality by 2025, including 216 days rated as "excellent," which is an increase of 18 days compared to 2024, resulting in a good air quality ratio of 97%, up by 1.4 percentage points year-on-year [1] - The average PM2.5 concentration is projected to decrease to 20 micrograms per cubic meter, with these two key indicators ranking among the best in the autonomous region, indicating a steady enhancement in ecological environment quality [1] - The improvement in air quality is attributed to the implementation of a precise ecological environment zoning and control system, which is essential for achieving a "normal blue" sky [1] Group 2 - Chifeng City is focusing on water quality improvement, coordinating pollution control with ecological restoration, and maintaining the effectiveness of river pollution outlet remediation [2] - By 2025, the city aims to complete sewage treatment in 170 administrative villages, with a total of 658 villages having completed sewage management [2] - The city is also conducting special actions targeting key areas such as water, air, and soil, cracking down on illegal discharges and addressing environmental issues affecting local communities [2]

Group 1 - Beijing achieved a significant milestone in air pollution control, with PM2.5 annual average concentration reaching 27.0 micrograms per cubic meter by 2025, marking a breakthrough as it is the first time it falls below 30 [1] - The number of days with good PM2.5 levels reached 348, an increase of 144 days compared to 2013, with the good air quality ratio rising from 55.9% to 95.3% [1] - The city has implemented a comprehensive strategy since 2013, focusing on reducing coal pollution, with a cumulative reduction of 13 million tons of coal by 2017 [1] Group 2 - Beijing utilized a data-driven approach to tackle pollution, identifying four major sources: vehicles, coal, industry, and dust, and continuously refining strategies based on data analysis [2] - A three-dimensional monitoring network was established, leveraging artificial intelligence for intelligent regulation, which includes automatic identification of violations in construction sites [2] - Collaborative pollution control mechanisms were developed with surrounding provinces, promoting a unified approach to air quality management [2] Group 3 - The achievement of 348 good air quality days reflects over a decade of persistent efforts in air pollution control, showcasing the commitment of various stakeholders including government, businesses, and citizens [3] - Continuous improvements in pollution control measures have been noted, with a focus on maintaining long-term efforts to ensure sustainable air quality [3]

Core Insights - Beijing has achieved a significant improvement in air quality, with the annual average concentration of PM2.5 dropping to 27.0 micrograms per cubic meter in 2025, marking the first time it has fallen below 30 micrograms since monitoring began [1] - The city has implemented a comprehensive "Blue Sky Defense War" to combat air pollution, focusing on various pollution sources and achieving substantial reductions in heavy pollution days [1] Group 1 - The annual average PM2.5 concentration in Beijing reached 27.0 micrograms per cubic meter in 2025, a record low [1] - The number of good air quality days increased to 348 in 2025, up by 144 days compared to 2013, while heavy pollution days decreased from 58 in 2013 to just 1 in 2025, a reduction of over 98% [1] - All six major pollutants, including inhalable particles, nitrogen dioxide, and ozone, met national standards, indicating comprehensive compliance with air quality requirements [1] Group 2 - Despite improvements, experts warn that the air quality gains are not yet stable, with regional pollutant emissions still high and exceeding environmental capacity [2] - The Beijing Ecological Environment Bureau plans to continue its efforts over the next five years, integrating air pollution control into broader economic and social development, focusing on green transformation and collaborative reduction of emissions and carbon [2] - The "0.1 microgram" action plan will be a key initiative in the ongoing battle for better air quality in Beijing [2]

Core Viewpoint - In 2025, Beijing achieved significant improvements in air quality, with PM2.5 annual average concentration dropping to 27.0 micrograms per cubic meter, marking a historic low and a milestone in air pollution control efforts [2][6][12] Group 1: Air Quality Improvements - The annual average concentration of PM2.5 in Beijing for 2025 is 27.0 micrograms per cubic meter, a year-on-year decrease of 11.5%, and the first time it has fallen below 30 micrograms [2][4] - Other major pollutants also saw improvements, with PM10, NO2, and O3 concentrations at 48, 22, and 159 micrograms per cubic meter respectively, showing year-on-year declines of 11.1%, 8.3%, and 7.0% [2] - The air quality was classified as good for 311 days in 2025, an increase of 21 days from the previous year, resulting in a good air quality rate of 85.2% [4][10] Group 2: Long-term Trends - Since 2013, PM2.5 levels have shown a long-term improvement trend, decreasing from 89.5 micrograms per cubic meter to 27.0 micrograms per cubic meter, a reduction of 69.8% [6][8] - Heavy pollution days dropped dramatically from 58 days in 2013 to just 1 day in 2025, a decrease of 98.3% [8][10] Group 3: Policy and Implementation - The achievement of improved air quality is attributed to comprehensive efforts in pollution control, including the promotion of new energy vehicles, with over 60% of new cars being electric by 2025 [12][14] - The city has implemented strict management measures, including enhanced dust control and green construction practices, leading to a significant reduction in road dust levels [12][14] - Collaborative efforts with neighboring regions have also played a crucial role in improving air quality through coordinated pollution control measures [14]