生态环境部:上半年中国空气和地表水环境质量总体改善|成人做爰黄AA片免费播放贝微微
7月28日,生态环境部举行例行新闻发布会。会上,生态环境部新闻发言人裴晓菲介绍,2025年上半年,全国环境空气质量和地表水环境质量总体持续改善。在环境空气质量方面,上半年,全国339个地级及以上城市平均空气质量优良天数比例为83.8%,同比上升1.0个百分点;平均重度及以上污染天数比例为1.5%,同比持平。全国PM2.5平均浓度为32.1微克/立方米,同比下降2.4%;PM10平均浓度同比持平,为55微克/立方米。(记者 郎佳慧)
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