中国城市空气质量的区域差异及归因分析 |
赵艳艳, 张晓平, 陈明星, 高珊珊, 李润奎 |
Regional variation of urban air quality in China and its dominant factors |
ZHAO Yanyan, ZHANG Xiaoping, CHEN Mingxing, GAO Shanshan, LI Runkui |
图2 2014—2019年城市6种空气污染物年均浓度 |
Fig. 2 Annual average concentrations of six urban ambient air pollutants from 2014 to 2019 |