Ottawa Air Quality

Monitoring Station · Centretown, Canada
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
42 5pm
42
42
42 8pm
42
42
40 11pm
40
40
39 2am
39
39
39 5am
39
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CAMS model adj +15
27
27
27
27
27
27
25
25
25
24
24
24
24
24

Air Quality Forecast (24h)

PM2.518.8 µg/m³ ×1.3 WHO
Moderate
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Nearby Monitoring Stations

42
Ottawa
0.0 km PM2.5: 10.1 µg/m³
21
Ottawa
0.0 km PM2.5: 5.0 µg/m³
39
Ottawa
0.0 km PM2.5: 9.4 µg/m³
14
Ottawa
0.0 km PM2.5: 3.4 µg/m³
41
Ottawa
0.0 km PM2.5: 9.8 µg/m³
37
Ottawa
0.0 km PM2.5: 8.9 µg/m³
55
Ottawa
0.0 km PM2.5: 14.0 µg/m³
12
Ottawa
0.0 km PM2.5: 2.9 µg/m³

Nearby Cities

74 Centretown 74 Ottawa 74 Hull 74 Vanier 73 Ottawa South 73 Alta Vista 71 Gatineau 72 Aylmer 73 Gloucester

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:41 UTC.