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Air Quality History for St Helens, United Kingdom

Historical PM2.5 and AQI trend from monitoring stations near St Helens, United Kingdom.

28
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 61 1–145 18.0 µg/m³ 22h 10
2026-05-28 59 36–89 16.3 µg/m³ 24h 11
2026-05-27 60 43–93 16.6 µg/m³ 24h 12
2026-05-26 77 36–152 24.3 µg/m³ 24h 13
2026-05-25 78 34–163 26.2 µg/m³ 24h 14
2026-05-24 60 22–194 20.3 µg/m³ 24h 10
2026-05-23 60 28–147 17.1 µg/m³ 24h 13
2026-05-22 73 47–151 22.4 µg/m³ 24h 14
2026-05-21 73 23–181 24.8 µg/m³ 24h 12
2026-05-20 80 24–156 26.4 µg/m³ 24h 12
2026-05-19 90 26–178 32.7 µg/m³ 24h 13
2026-05-18 76 15–142 24.3 µg/m³ 24h 13
2026-05-17 70 32–103 21.5 µg/m³ 24h 14
2026-05-16 64 7–149 19.0 µg/m³ 23h 15
2026-05-15 58 57–58 15.1 µg/m³ 2h 10
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