Port Stanley, Ontario, Canada Air Quality

Monitoring Station · St. Thomas, Canada
149
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
24 9pm
24
24
24 12am
25
25
25 3am
25
25
25 6am
25
25
25 9am
27
25
— 12pm
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— 6pm
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Air Quality Forecast (24h)

PM2.555.0 µg/m³ ×3.7 WHO
Unhealthy for sensitive groups
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Nearby Monitoring Stations

45
Port Stanley, Ontario, Canada
0.0 km PM2.5: 10.8 µg/m³

Nearby Cities

38 St. Thomas 40 London 49 Tillsonburg 26 Strathroy 52 Woodstock 52 Norfolk County 52 Stratford 33 Brant 33 Chatham

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T00:50 UTC.