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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

Air Quality Index Station

138h

PM2.5 Station

138h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily 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 14 4–49 3.3 µg/m³ 3.2 13h 1
2026-09-13 4 3–6 1.1 µg/m³ 1.1 7h 1
2026-09-12 7 1–21 1.8 µg/m³ 1.8 15h 1
2026-09-11 4 4–4 0.8 µg/m³ 1.0 4h 1
2026-09-10 11 4–23 2.6 µg/m³ 2.9 11h 1
2026-09-09 4 2–9 1.2 µg/m³ 1.7 4h 1
2026-09-08 4 4–5 1.1 µg/m³ 1.1 2h 1
2026-09-07 10 4–16 2.3 µg/m³ 2.6 8h 1
2026-09-06 7 2–23 1.8 µg/m³ 2.1 17h 1
2026-09-05 34 3–161 13.2 µg/m³ 14.2 7h 1
2026-09-03 4 4–4 1.0 µg/m³ 1.0 1h 1
2026-09-02 4 2–4 0.8 µg/m³ 1.1 8h 1
2026-09-01 6 6–6 1.4 µg/m³ 1.5 1h 1
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