河南的云美出天际

Group 1 - The recent improvement in air quality in Henan is attributed to a combination of favorable weather conditions and effective environmental policies [3][4] - As of July 2023, Henan's PM2.5 concentration was 41.2 micrograms per cubic meter, a 14.9% decrease from the same period last year, with 140.2 days classified as good air quality [3][4] - Compared to 2017, PM2.5 levels have decreased by 25.1%, with 27 more days of good air quality and 9.4 fewer days of heavy pollution [3][4] Group 2 - The province has implemented significant measures, including the elimination of nearly 2 million kilowatts of outdated coal power capacity and the promotion of over 2.1 million new energy vehicles [4] - Policies such as the Henan Air Quality Improvement Action Plan and the 2025 Blue Sky Defense Plan have been introduced to ensure sustained air quality improvements [4] - The upcoming weather forecast indicates continued good air quality, reinforcing the trend of clearer skies and better environmental conditions in Henan [4]