Port Stanley, Ontario, Canada Air Quality
Monitoring Station
· St. Thomas, Canada
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
56
12am
56
56
39
3am
56
56
56
6am
56
58
58
9am
56
56
56
12pm
55
55
—
3pm
—
—
—
6pm
—
—
—
9pm
—
—
Station readings
39
CAMS model
adj +31
25
25
25
25
25
25
25
25
27
27
25
25
25
24
24
Air Quality Forecast (24h)
PM2.59.4 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T03:25 UTC.