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
49
10pm
44
49
49
1am
49
49
49
4am
49
49
49
7am
51
51
49
10am
49
49
—
1pm
—
—
—
4pm
—
—
—
7pm
—
—
Station readings
44
CAMS model
adj +24
25
25
25
25
25
25
25
25
25
25
27
27
25
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 2026-08-08T01:30 UTC.