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Air Quality History for Ajax, Canada

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

36
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

480h

PM2.5 Station

480h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-05-30 54 28–157 17.9 µg/m³ — 6h 6
2026-05-29 48 16–113 13.5 µg/m³ — 24h 8
2026-05-28 47 16–201 16.8 µg/m³ — 24h 8
2026-05-27 61 17–151 18.1 µg/m³ — 24h 8
2026-05-26 54 16–142 15.8 µg/m³ — 24h 8
2026-05-25 66 26–205 23.4 µg/m³ — 24h 8
2026-05-24 49 9–124 14.1 µg/m³ — 24h 8
2026-05-23 73 18–183 24.7 µg/m³ — 24h 10
2026-05-22 53 17–103 15.2 µg/m³ — 24h 8
2026-05-21 77 5–172 26.8 µg/m³ — 24h 10
2026-05-20 69 15–253 26.7 µg/m³ — 24h 9
2026-05-19 50 17–106 14.2 µg/m³ — 24h 8
2026-05-18 63 18–195 23.1 µg/m³ — 24h 7
2026-05-17 48 17–126 13.4 µg/m³ — 24h 4
2026-05-16 43 16–153 11.7 µg/m³ — 24h 8
2026-05-15 50 27–96 13.6 µg/m³ — 24h 10
2026-05-14 57 14–208 20.1 µg/m³ — 24h 10
2026-05-13 57 19–149 16.3 µg/m³ 0.8 24h 10
2026-05-12 47 21–97 12.4 µg/m³ — 24h 10
2026-05-11 48 17–86 13.5 µg/m³ 23.4 24h 11
2026-05-10 45 23–77 11.6 µg/m³ 2.0 18h 11
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