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
35 2am
42
53
62 5am
62
62
62 8am
62
62
62 11am
62
42
35 2pm
35
35
— 5pm
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—
— 8pm
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— 11pm
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Station readings
53
CAMS model adj +8
27
34
34
54
54
54
54
54
54
54
54
34
27
27
27

Air Quality Forecast (24h)

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

50
Ottawa
0.0 km PM2.5: 12.0 µg/m³
53
Ottawa
0.0 km PM2.5: 13.1 µg/m³
46
Ottawa
0.0 km PM2.5: 11.0 µg/m³
17
Ottawa
0.0 km PM2.5: 4.1 µg/m³
17
Ottawa
0.0 km PM2.5: 4.1 µg/m³
53
Ottawa Downtown, Ontario, Canada
2.2 km PM2.5: 13.1 µg/m³
53
Ottawa Downtown, Ontario, Canada
2.2 km PM2.5: 13.1 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 2026-08-11T05:22 UTC.