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Air Quality History for Welland, Canada

Historical PM2.5 and AQI trend from monitoring stations near Welland, Canada.

38
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

476h

PM2.5 Station

476h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-30 37 23–65 9.4 µg/m³ 6h 7
2026-05-29 34 9–64 8.5 µg/m³ 24h 7
2026-05-28 36 13–97 9.4 µg/m³ 24h 7
2026-05-27 57 23–174 18.3 µg/m³ 24h 7
2026-05-26 47 7–156 13.9 µg/m³ 24h 7
2026-05-25 40 14–79 10.7 µg/m³ 24h 6
2026-05-24 37 12–115 9.9 µg/m³ 24h 6
2026-05-23 54 22–130 15.2 µg/m³ 24h 7
2026-05-22 39 13–123 11.0 µg/m³ 24h 7
2026-05-21 71 17–182 25.7 µg/m³ 24h 8
2026-05-20 48 12–176 15.4 µg/m³ 24h 7
2026-05-19 50 18–152 13.9 µg/m³ 24h 7
2026-05-18 56 23–110 16.1 µg/m³ 24h 7
2026-05-17 33 12–59 8.1 µg/m³ 23h 5
2026-05-16 31 18–62 7.5 µg/m³ 22h 7
2026-05-15 45 15–153 12.3 µg/m³ 24h 8
2026-05-14 46 13–195 16.0 µg/m³ 24h 8
2026-05-13 47 20–209 16.4 µg/m³ 24h 8
2026-05-12 39 11–62 9.7 µg/m³ 24h 8
2026-05-11 44 12–114 12.6 µg/m³ 24h 9
2026-05-10 43 10–111 11.4 µg/m³ 17h 10
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