新华社权威快报丨环境空气质量新国标来了！“好天气”标准更严

Core Points - The newly revised "Ambient Air Quality Standards" (GB 3095—2026) has been jointly released by the Ministry of Ecology and Environment and the State Administration for Market Regulation, indicating stricter standards for "good weather" to better protect public health [3] Group 1: PM2.5 Standards - The annual average concentration limit for PM2.5 has been adjusted to 10 micrograms per cubic meter for the first level and 25 micrograms per cubic meter for the second level [3] - The daily average concentration limit for PM2.5 has been set to 25 micrograms per cubic meter for the first level and 50 micrograms per cubic meter for the second level [3] Group 2: Implementation Phases - The new standards will be implemented in phases, with the first phase starting from March 1, 2026, to December 31, 2030, where the transitional concentration limits for PM2.5 will be 30 micrograms per cubic meter for the annual average and 60 micrograms per cubic meter for the daily average [3] - The second phase will commence on January 1, 2031, enforcing the revised concentration limits for PM2.5, PM10, SO2, and NO2 nationwide [3]