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Saint Catharines

St. Catharines, Niagara Regional Municipality

2026-06-11 04:00
AQI (China)
Excellent
Pollutants
O3
μg/m³
85.7
PM2.5
μg/m³
8
NO2
μg/m³
6.2
Weather
  • ℃
  • ℉
22℃
90%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • O3
  • PM2.5
  • NO2
Places included
St. Catharines
AQI 27
Data Sources
http://www.airnow.gov/

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