（文章来源：南方都市报） "但是，这并不代表空气质量本身退步，而是我们的评价标准更严格，对蓝天白云的要求更高了。我们 现在是力争从明显变好转向好上加好，好而持久。"李天威说。 对于不同浓度的城市应该怎么办？李天威介绍，要分区分类分阶段的差别化施策。他以2025年为例，全 国PM2.5年均浓度高于35微克/立方米的城市还有68个，大概占两成，这些城市在原来的标准下就不达 标，接下来还要继续聚焦结构减排、工程减排、管理减排，着力的攻坚突出污染问题，推动空气质量明 显改善。PM2.5年均浓度在26—35微克/立方米的城市有131个，大概占四成，其中66个城市在30到35微 克/立方米之间，这些城市马上就面临由达标变为不达标了，这些城市要利用好过渡期，进一步分析污 染成因，挖掘减排潜力，削减污染物排放，争取早日达标。2025年全国PM2.5年均浓度低于25微克/立方 米的城市有140个，大概占四成，这些城市要进一步的巩固达标成果，进一步提质增效，避免反弹，力 争稳中向优。 从手段上如何做好分区分类分阶段的差异化？李天威表示，在目标设定上，我们将会根据各地空气质量 的状况、污染减排的潜力设置不同的空气质量改善的目标。理 ...

央视网消息：随着空气质量持续改善，生态环境部启动《环境空气质量标准》新一轮修订工作。新的《环境空气质量标准》2月24日正式 对外发布。 根据新标准，PM2.5的年均浓度达标值由现行的35微克/立方米收严到25微克/立方米，将PM10的年均浓度达标值由70微克/立方米收严到50 微克/立方米。二氧化硫的年均浓度达标值由60微克/立方米收严到20微克/立方米，二氧化氮的年均浓度达标值由40微克/立方米收严到30微克/ 立方米。相关污染物分析方法、标准配套技术规范及环境功能区一类区范围等也作了相应调整或修订。 清华大学环境学院教授王书肖表示，从2013年到现在，大气污染治理取得了历史性的成就，已经有70%左右的城市能够达到现行的环境空 气质量标准，这样就使得现行空环境空气质量标准，对于空气质量持续深入改善的引领作用在逐渐减弱。为了进一步推动城市空气质量改善， 有效保护人体健康，就需要考虑进一步加严标准限值。 按照之前制订的PM2.5年均浓度35微克/立方米的标准，我国现在虽有70%的城市达标，但仍有近半数PM2.5的年均浓度值高于25微克/立方 米。按照美丽中国建设要求，到2035年，全国PM2.5平均浓度要降到2 ...

中国青年报客户端北京2月25日电（中青报·中青网记者 张艺）今年3月1日起，我国迎来空气质量新标 准。 该负责人表示，《标准》修订会导致达标城市比例等评价结果有所下降，但是这种下降并不意味着空气 质量变差，而是《标准》的限值加严、要求变高产生的；从PM2.5等主要污染物浓度水平看，我国空气 质量显著改善是客观现实。《标准》修订体现了我国以更高标准引领环境质量持续改善的决心。 生态环境部与国家市场监督管理总局近日联合发布《环境空气质量标准》（GB 3095—2026）（以下简 称《标准》）和《环境空气质量指数（AQI）技术规定》（HJ 633—2026）、《环境空气质量评价技术 规范》（HJ 663—2026）两项配套技术规范。 来源：中国青年报客户端 这是继2012年以来，空气质量标准再次升级。据生态环境部大气环境司有关负责人介绍，本次《标准》 修订产生的治理投入与健康收益的比值接近1:10，《标准》实施将有效降低人群健康风险，推动绿色低 碳转型。预计2026-2035年期间，各项污染物减排措施可实现CO2协同减排超70亿吨。 本次《标准》修订中，备受关注的是颗粒物及其主要前体物浓度限值收严，将PM2.5年均 ...

Group 1 - The revised air quality standards have tightened the concentration limits for PM2.5, sulfur dioxide, and nitrogen dioxide, with the annual PM2.5 limit reduced from 35 micrograms per cubic meter to 25 micrograms per cubic meter [3] - The implementation of the new standards will be phased to minimize the impact on economic and social development, ensuring a smooth transition [3] - The tightening of standards is expected to promote the development of new energy vehicles and clean energy, facilitating a green and low-carbon transformation in industries, energy, and transportation [3] Group 2 - The ecological environment department emphasizes that the new standards should not simply replicate the strictest international levels, but must consider factors such as spatial layout, industrial structure, and resource endowment [3] - The current coal-dominated energy structure in China is expected to change slowly in the short term, and the country aims to reach a level of development comparable to that of medium-developed countries by 2035, where PM2.5 limits are also around 25 micrograms per cubic meter [3]

Core Viewpoint - The Ministry of Ecology and Environment of China has released a draft for revised air quality standards, tightening the limits for PM2.5 and PM10 concentrations to better protect public health while considering national conditions [1][2]. Group 1: Air Quality Standards - The proposed secondary limits for PM2.5 annual and daily concentrations are tightened from 35 and 75 micrograms per cubic meter to 25 and 50 micrograms per cubic meter, respectively [1]. - The secondary limits for PM10 annual and daily concentrations are also tightened from 70 and 150 micrograms per cubic meter to 50 and 100 micrograms per cubic meter [1]. - The limits for sulfur dioxide and nitrogen dioxide are also being tightened due to their health impacts and their role in the secondary formation of PM2.5 [1]. Group 2: Comparison with International Standards - Other countries and regions, such as the United States, have also revised their PM2.5 limits, with the U.S. EPA tightening the annual average from 12 micrograms per cubic meter to 9 micrograms per cubic meter by 2024 [1]. - Despite these international standards, the proposed limits in China are still considered relatively lenient compared to the strictest global standards [1]. Group 3: National Context and Development - China's reliance on coal and its status as a manufacturing powerhouse, contributing nearly 30% to global manufacturing value, necessitate higher emissions of air pollutants [2]. - The expected economic development trajectory suggests that by 2035, China will reach a level comparable to that of medium-developed countries, which typically have PM2.5 limits around 25 micrograms per cubic meter [2]. - The revision of standards reflects China's commitment to improving environmental quality and public health while aligning with its development goals [2].

Core Viewpoint - The Ministry of Ecology and Environment has released a draft for revised air quality standards, tightening limits on pollutants such as PM2.5, PM10, SO2, and NO2, which may impact economic and social development, but the overall benefits for public health and economic growth are emphasized [1][4]. Group 1: Air Quality Improvement - Over the past decade, the average PM2.5 concentration in China has decreased by 36%, with heavy pollution days reduced by 68%, while GDP has increased by 63% and the number of vehicles has grown by 111% [2]. - The revised standards aim to transition from total pollutant emission control to air quality improvement, from single pollutant control to multi-pollutant management, and from local to regional pollution control [2][4]. Group 2: Implementation Phases - The revised air quality standards will be implemented in two phases: the first phase (2026-2030) will set PM2.5 annual and daily limits at 30 µg/m³ and 60 µg/m³, respectively; the second phase (from 2031) will further tighten these limits to 25 µg/m³ and 50 µg/m³ [3]. - The phased approach is designed to minimize the impact on economic and social stability while ensuring a smooth transition to stricter standards [3]. Group 3: Long-term Benefits - Stricter standards are expected to further reduce PM2.5 levels, improve air quality, decrease the incidence of cardiovascular and respiratory diseases, and enhance public health and well-being [4]. - The revisions are anticipated to foster the development of new production capacities in electric vehicles and clean energy, promote advanced processes in industries such as metallurgy and petrochemicals, and drive a green and low-carbon transition in various sectors [4]. Group 4: National Context - The formulation of air quality standards must consider national conditions and not simply adopt the strictest international levels; it should reflect China's unique energy structure and economic development stage [5][6]. - China's reliance on coal and its status as a manufacturing powerhouse necessitate a balanced approach to pollution control, with PM2.5 limits expected to align with those of developed countries as the economy matures [6].

Core Viewpoint - The Ministry of Ecology and Environment emphasizes the need to develop air quality standards that consider national conditions while protecting public health, rather than simply adopting international standards [1][2] Group 1: Air Quality Standards - The Ministry of Ecology and Environment is revising PM2.5 concentration limits, taking into account the country's specific circumstances and development stage [1] - The U.S. Environmental Protection Agency plans to tighten the PM2.5 annual average from 12 micrograms per cubic meter to 9 micrograms per cubic meter by 2024, while China's secondary limit remains relatively lenient [1] - The revised standards will consider factors such as spatial layout, industrial structure, resource endowment, environmental capacity, and governance capabilities to ensure they are scientific, reasonable, and achievable [1] Group 2: National Context - China's energy structure, primarily reliant on coal, is expected to change slowly, and as a major manufacturing country, it contributes significantly to air pollution emissions [1] - By 2035, China is projected to reach the level of a moderately developed country, with PM2.5 limits in developed countries at similar economic stages around 25 micrograms per cubic meter [1] - The standard revision reflects China's confidence and determination to lead continuous improvements in environmental quality, supporting the goal of building a beautiful China [2]

Group 1 - The revised air quality standards in China still lag behind those of developed countries like the US and EU, indicating a need for standards that reflect national conditions rather than simply adopting the strictest international levels [1] - The US EPA plans to tighten the PM2.5 annual average from 12 micrograms per cubic meter to 9 micrograms per cubic meter by 2024, while China's secondary limit remains relatively lenient [1] - The revision of standards should consider factors such as spatial layout, industrial structure, resource endowment, environmental capacity, and governance capabilities to ensure they are scientific, reasonable, and achievable [1] Group 2 - China's reliance on coal as a primary energy source is expected to persist in the short term, contributing to higher emissions of air pollutants due to its status as a manufacturing powerhouse, accounting for nearly 30% of global manufacturing value added [2] - By 2035, China is projected to reach a level comparable to that of middle-income developed countries, where PM2.5 limits are around 25 micrograms per cubic meter, aligning with the country's current economic and social development stage [2] - The standard revision reflects China's confidence and determination to lead continuous improvements in environmental quality, supporting the goal of building a beautiful China and better protecting public health [2]

Core Points - The Ministry of Ecology and Environment has released a draft for the revision of the "Ambient Air Quality Standards" and related technical specifications, focusing on tightening the concentration limits for PM2.5, PM10, sulfur dioxide, and nitrogen dioxide [1][2] - The revised standards propose to lower the secondary limits for PM2.5 from 35 and 75 micrograms per cubic meter to 25 and 50 micrograms per cubic meter, and for PM10 from 70 and 150 micrograms per cubic meter to 50 and 100 micrograms per cubic meter [1] - The implementation of the revised standards will occur in two phases: the first phase from 2026 to 2030 with transitional limits, and the second phase starting in 2031 with full enforcement of the new limits [1] Summary by Sections Revision Details - The draft proposes stricter limits for PM2.5 and PM10, as well as for sulfur dioxide and nitrogen dioxide, to enhance public health protection [1] - The new PM2.5 annual and daily secondary limits will be 30 and 60 micrograms per cubic meter during the transitional phase [1] Impact on Air Quality Assessment - The revision may lead to changes in air quality evaluation results for certain cities and regions, potentially shifting from compliant to non-compliant status under the new standards [2] - This change does not indicate a deterioration in air quality but reflects a commitment to improving air quality under higher standards [2]

Core Viewpoint - The article discusses the recent revisions to China's air quality standards, emphasizing the need to tighten limits on pollutants like PM2.5, SO2, and NO2 to improve public health and align with international standards [3][4][5]. Group 1: Air Quality Standards Revision - The Ministry of Ecology and Environment has proposed stricter limits for PM2.5, reducing the annual average concentration limit from 35 micrograms per cubic meter to 25 micrograms per cubic meter [6][7]. - The revised standards aim to support the "Beautiful China" initiative, which targets a national average PM2.5 concentration below 25 micrograms per cubic meter by 2035 [5][6]. - The new standards will also tighten limits for SO2 and NO2, with SO2's annual average limit set to 20 micrograms per cubic meter and NO2's to 30 micrograms per cubic meter [8]. Group 2: Health and Environmental Impact - The article highlights that PM2.5 is the most significant air pollutant affecting human health, necessitating stricter regulations based on WHO's updated guidelines [4][5]. - Experts indicate that the ongoing improvement in air quality requires updated standards to maximize health benefits and address changing pollution characteristics [6][7]. - The revisions are expected to lead to changes in air quality assessment results for some cities, potentially reclassifying them from compliant to non-compliant under the new standards [9]. Group 3: Economic Implications - Implementing stricter air quality standards may exert short-term pressure on the economy, particularly on high-pollution industries [10]. - However, the article suggests that these changes could drive industrial upgrades, reduce output from high-pollution sectors, and promote a transition to cleaner energy sources [10]. - The health benefits of stricter regulations are expected to increase significantly as enforcement intensifies, leading to long-term positive outcomes for public health [10].