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Air Quality History for Saint Helier, Jersey

Historical PM2.5 and AQI trend from monitoring stations near Saint Helier, Jersey.

25
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

440h

PM2.5 Station

440h · 35 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-07-22 23 21–24 5.5 µg/m³ 6h 35
2026-07-21 16 12–20 3.9 µg/m³ 23h 35
2026-07-20 13 10–19 3.2 µg/m³ 22h 35
2026-07-19 17 11–39 4.0 µg/m³ 23h 35
2026-07-18 58 36–64 15.6 µg/m³ 23h 35
2026-07-17 39 34–46 9.4 µg/m³ 24h 35
2026-07-16 45 37–55 10.9 µg/m³ 22h 35
2026-07-15 42 33–53 10.2 µg/m³ 23h 35
2026-07-14 40 33–45 9.6 µg/m³ 23h 34
2026-07-13 33 22–45 7.9 µg/m³ 23h 35
2026-07-12 51 22–70 14.1 µg/m³ 22h 35
2026-07-11 44 40–48 10.5 µg/m³ 19h 33
2026-07-10 31 25–42 7.6 µg/m³ 22h 36
2026-07-09 38 23–52 9.1 µg/m³ 23h 36
2026-07-08 23 14–46 5.5 µg/m³ 24h 36
2026-07-07 9 4–16 2.1 µg/m³ 24h 36
2026-07-06 10 4–37 2.5 µg/m³ 12h 36
2026-07-05 17 13–31 4.1 µg/m³ 24h 36
2026-07-04 18 8–42 4.4 µg/m³ 24h 36
2026-07-03 18 10–28 4.4 µg/m³ 24h 36
2026-07-02 7 6–10 1.8 µg/m³ 10h 36
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