Port Stanley, Ontario, Canada Air Quality
Monitoring Station
· St. Thomas, Canada
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
50
9pm
44
50
50
12am
50
50
50
3am
50
50
50
6am
50
52
52
9am
50
50
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
Station readings
44
CAMS model
adj +25
25
25
25
25
25
25
25
25
25
25
25
27
27
25
25
Air Quality Forecast (24h)
PM2.510.6 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T00:42 UTC.