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
45 3am
45
53
65 6am
65
65
65 9am
65
65
65 12pm
45
38
38 3pm
38
36
— 6pm
—
—
— 9pm
—
—
— 12am
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Station readings
53
CAMS model adj +11
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
38
Ottawa
0.0 km PM2.5: 9.1 µg/m³
46
Ottawa
0.0 km PM2.5: 11.0 µg/m³
53
Ottawa
0.0 km PM2.5: 13.1 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 2026-08-11T06:26 UTC.