| | | | | | | | | 28 | | | | | | | | | | | | | | | 1 24 | | | | | | 1 27 | | | | 28 16 | | PM2.5 | | | PM2.5 | 80% | | | | | | | AQI 10 | | | | | | | | | | | | | | | | | | 1 30 | | 1 29 | | | | | | | | | | | | | | | | | |