Air Quality History for Hertford, United Kingdom
Historical PM2.5 and AQI trend from monitoring stations near Hertford, United Kingdom.
5
Current AQI
Good Station
Good Station
Air Quality Index Station
51hPM2.5 Station
51h · 1 stationTemperature GFS model
28ptPrecipitation GFS model
mm/dayDaily Summary Station
| Date | AQI | Range | PM2.5 avg | PM10 avg | Hours | Stations |
|---|---|---|---|---|---|---|
| 2026-09-21 | 6 | 4–7 | 1.3 µg/m³ | 1.4 | 5h | 1 |
| 2026-09-20 | 5 | 3–8 | 1.1 µg/m³ | 1.3 | 10h | 1 |
| 2026-09-19 | 4 | 1–8 | 1.0 µg/m³ | 1.5 | 4h | 1 |
| 2026-09-18 | 10 | 4–18 | 2.4 µg/m³ | 2.9 | 15h | 1 |
| 2026-09-16 | 5 | 5–5 | 1.2 µg/m³ | 1.2 | 1h | 1 |
| 2026-09-15 | 9 | 1–25 | 2.2 µg/m³ | 2.6 | 5h | 1 |
| 2026-09-14 | 15 | 4–49 | 3.7 µg/m³ | 3.6 | 11h | 1 |