陕西区域环境空气质量时空特征

张佳音, 郭云飞, 肖舜, 杜涛, 郑淏, 刘焕武, 王蕾, 何延新

The temporal and spatial characteristics of ambient air quality in Shaanxi

Jiayin Zhang, Yunfei Guo, Shun Xiao, Tao Du, Hao Zheng, Huanwu Liu, Lei Wang, Yanxin He

图6 2017—2021年陕西AQI等级和首要污染物占比季节特征

Fig.6 Seasonal characteristics of AQI grade and primary pollutant proportion in different regions of Shaanxi during 2017-2021