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生态环境部:中国地级及以上城市空气质量连续5年稳定最准一肖一码100%中达标
站长之家 - 业界 2025-01-20 17:54:06

生态环境部:中国地级及以上城市空气质量连续5年稳定最准一肖一码100%中达标

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1月20日,生态环境部召开例行新闻发布会。会上,生态环境部新闻发言人裴晓菲介绍,2024年中国地级及以上城市PM2.5平均浓度为29.3微克/立方米,同比下降2.7%,连续5年稳定达标。中国优良天数比例达到87.2%,同比上升1.7个百分点;重污染天数比例为0.9%,同比下降0.7个百分点。其中,北京市PM2.5浓度为30.5微克/立方米,同比下降6.2%,优良天数比例达到79.2%,同比上升5.0个百分点。(记者 郎佳慧)