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  6. Saint Catharines

Saint Catharines

St. Catharines, Niagara Regional Municipality

2026-01-22 16:00
CAQI (Europe)
Low
Pollutants
O3
μg/m³
72.9
PM2.5
μg/m³
7
NO2
μg/m³
8.2
Weather
  • ℃
  • ℉
-4℃
80%
39 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • O3
  • PM2.5
  • NO2
Places included
St. Catharines
AQI 31
Data Sources
http://www.airnow.gov/

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Welland
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Lincoln
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Ransomville
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