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7月,全国各地339个县层及以上城市的空气质量良

CCTV新闻:生态与环境部宣布了2025年7月的国家空气质量状况。7月,全国339县及以上城市的平均PM2.5平均浓度为14.5微克/立方米,年度下降量为8.2%。 PM10的平均浓度为28微克/立方米,同比降低3.4%; O3的平均浓度为138微克/立方米,每年增加4.5%; SO2的平均浓度为6微克/立方米,逐年降低14.3%; NO2的平均浓度为11微克/立方米,同比下降8.3%;平均CO浓度为0.6 mg/立方米,同比下降14.3%。 7月,全国339县县及以上城市的空气质量良好的日子比例为93.0%,同比增长1.0%;严重和超过污染的天数比例为0.2%一年一度的0.1%积分。由沙尘暴引起的标准的平均天数为0.6%,严重且高于污染的天数为0.2%。 Mga pangunahing lungsod noong Hulyo, kabilang sa 168 pangunahing mga lungsod: ang nangungunang 20 lungsod na may mas mahusay na kalidad ng hangin ay Huangshan, Haikou, Lishui, Fuzhou, Ningbo, Zhoushan, Taizhou, Guiyang, Shaoxing, Lhasa, Wenzhou,Kunming,Lu'an,Quzhou,Yichun,Xuancheng,Zhuhai,Xiamen,Jinhua和Nanchang。 The last 20 cities with poor air quality are Yangquan, Jiaozuo, Luliang, Hebi, Lanzhou, Linfen, Tangshan, Taiyuan, Xining, Tianjin, Puyang, Kaifeng, Liacheng, Dongguan, Langfang, Luyang, Xinxiang, Xingtai, Jincheng and Shijiazang. In July, among the 168 main cities: the top 20City with low PM2.5 concentrations are Lishui, Zhoushan, Dazhou, Lhasa, Fuzhou, Huangshan, Ningbo, Huangshi, Haikou, Ezhou, Tarizhou, Guiyang, Suining, Xiaogan, Dongying, Wenzhou, Nantong, Kunming,和Yichang。 PM2.5浓度较高的最后20个城市包括Hebi,Tangshan,Suizhou,Yangquan,Puyan,Lanzhou,Shijiazhuang,Jiaozuo,Anangang,Xuzhou,Kaifeng,Kaifeng,Huludao,Huludao,Huludao,Taiyuan,Taiyuan,Tianjin,Xianning,Xianning,sanmenxia,sanmenxia,luoyang,luoyang,luoyliang,luoy luoy。