Ottawa Air Quality

Monitoring Station · Centretown, Canada
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
39 5pm
39
55
39 8pm
39
39
37 11pm
37
37
36 2am
36
36
36 5am
36
—
— 8am
—
—
— 11am
—
—
— 2pm
—
—
Station readings
55
CAMS model adj +12
27
27
27
27
27
27
25
25
25
24
24
24
24
24

Air Quality Forecast (24h)

PM2.514.0 µg/m³ ✓ WHO
Moderate
View city history →

Nearby Monitoring Stations

42
Ottawa
0.0 km PM2.5: 10.1 µg/m³
65
Ottawa
0.0 km PM2.5: 18.8 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
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 2026-07-21T20:13 UTC.