Ottawa Air Quality

Monitoring Station · Centretown, Canada
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
42 3am
53
62
62 6am
62
62
62 9am
62
62
62 12pm
42
35
35 3pm
35
33
— 6pm
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—
— 9pm
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— 12am
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Station readings
53
CAMS model adj +8
34
34
54
54
54
54
54
54
54
54
34
27
27
27
25

Air Quality Forecast (24h)

PM2.513.1 µg/m³ ✓ WHO
Moderate
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Nearby Monitoring Stations

17
Ottawa
0.0 km PM2.5: 4.1 µg/m³
17
Ottawa
0.0 km PM2.5: 4.1 µg/m³
53
Ottawa
0.0 km PM2.5: 13.1 µg/m³
38
Ottawa
0.0 km PM2.5: 9.1 µg/m³
46
Ottawa
0.0 km PM2.5: 11.0 µg/m³
50
Ottawa
0.0 km PM2.5: 12.0 µg/m³
38
Ottawa Downtown, Ontario, Canada
2.2 km PM2.5: 9.1 µg/m³
17
Ottawa Downtown, Ontario, Canada
2.2 km PM2.5: 4.1 µg/m³

Nearby Cities

23 Centretown 24 Ottawa 24 Hull 29 Vanier 25 Ottawa South 25 Alta Vista 17 Gatineau 23 Aylmer 24 Gloucester

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-11T06:27 UTC.