Air Quality History for Heyan, China
Historical PM2.5 and AQI trend from monitoring stations near Heyan, China.
62
Current AQI
Moderate CAMS model
Moderate CAMS model
Air Quality Index Station
265hPM2.5 Station
265h · 1 stationTemperature GFS model
80ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | Hours | Stations |
|---|---|---|---|---|---|
| 2026-07-22 | 60 | 57–63 | 16.4 µg/m³ | 2h | 1 |
| 2026-07-21 | 65 | 20–112 | 19.7 µg/m³ | 14h | 1 |
| 2026-07-20 | 66 | 42–101 | 19.6 µg/m³ | 16h | 1 |
| 2026-07-19 | 62 | 30–116 | 18.2 µg/m³ | 11h | 1 |
| 2026-07-18 | 57 | 25–76 | 15.9 µg/m³ | 11h | 1 |
| 2026-07-17 | 49 | 26–73 | 12.4 µg/m³ | 8h | 1 |
| 2026-07-16 | 47 | 25–80 | 12.2 µg/m³ | 14h | 1 |
| 2026-07-15 | 49 | 27–81 | 13.2 µg/m³ | 12h | 1 |
| 2026-07-14 | 59 | 17–99 | 17.4 µg/m³ | 8h | 2 |
| 2026-07-13 | 56 | 25–97 | 15.7 µg/m³ | 20h | 1 |
| 2026-07-12 | 47 | 13–70 | 12.1 µg/m³ | 12h | 1 |
| 2026-07-11 | 53 | 18–97 | 15.1 µg/m³ | 16h | 1 |
| 2026-07-10 | 53 | 20–97 | 15.0 µg/m³ | 12h | 1 |
| 2026-07-09 | 53 | 30–82 | 14.3 µg/m³ | 15h | 2 |
| 2026-07-08 | 43 | 13–72 | 11.1 µg/m³ | 19h | 1 |
| 2026-07-07 | 39 | 17–91 | 10.3 µg/m³ | 13h | 1 |
| 2026-07-06 | 42 | 13–104 | 11.9 µg/m³ | 7h | 1 |
| 2026-07-05 | 41 | 21–90 | 10.7 µg/m³ | 17h | 1 |
| 2026-07-04 | 51 | 13–127 | 14.7 µg/m³ | 17h | 1 |
| 2026-07-03 | 41 | 16–70 | 10.6 µg/m³ | 16h | 2 |
| 2026-07-02 | 34 | 13–63 | 8.7 µg/m³ | 5h | 1 |