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Air Quality History for Niagara, Canada

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

24
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

332h

PM2.5 Station

332h · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 15 1–40 3.6 µg/m³ 1.2 3h 3
2026-10-20 36 6–119 10.7 µg/m³ 22.0 24h 4
2026-10-19 67 2–162 23.8 µg/m³ 32.6 24h 2
2026-10-18 16 1–129 4.1 µg/m³ 4.7 24h 3
2026-10-17 57 4–166 19.8 µg/m³ 33.5 24h 3
2026-10-16 65 2–184 24.4 µg/m³ 28.6 20h 1
2026-10-15 66 1–154 22.6 µg/m³ 33.0 24h 2
2026-10-14 44 2–103 13.1 µg/m³ 21.1 24h 3
2026-10-13 73 12–174 26.7 µg/m³ 29.9 24h 2
2026-10-12 52 2–155 17.2 µg/m³ 20.4 24h 2
2026-10-11 12 1–25 3.0 µg/m³ 1.6 24h 3
2026-10-10 20 4–70 4.7 µg/m³ 6.5 24h 5
2026-10-09 71 1–164 27.1 µg/m³ 30.6 24h 1
2026-10-08 28 1–115 8.1 µg/m³ 12.9 24h 4
2026-10-07 16 1–71 3.8 µg/m³ 3.0 21h 4
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