Air Quality History for Harpenden, United Kingdom
Historical PM2.5 and AQI trend from monitoring stations near Harpenden, United Kingdom.
36
Current AQI
Good CAMS model
Good CAMS model
Air Quality Index Station
99hPM2.5 Station
99h · 1 stationTemperature GFS model
28ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-05-29 | 8 | 1–27 | 2.1 µg/m³ | 2.4 | 10h | 1 |
| 2026-05-28 | 22 | 4–48 | 5.3 µg/m³ | 5.6 | 17h | 1 |
| 2026-05-27 | 35 | 7–110 | 9.7 µg/m³ | 10.5 | 11h | 1 |
| 2026-05-26 | 34 | 9–72 | 8.8 µg/m³ | 9.7 | 16h | 1 |
| 2026-05-25 | 50 | 16–231 | 21.2 µg/m³ | 22.3 | 15h | 1 |
| 2026-05-24 | 8 | 3–30 | 1.9 µg/m³ | 2.1 | 14h | 1 |
| 2026-05-23 | 16 | 4–33 | 3.8 µg/m³ | 4.5 | 16h | 1 |