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  6. Saint Catharines

Saint Catharines

St. Catharines, Niagara Regional Municipality

2025-03-19 22:00
CAQI (Europe)
Medium
Pollutants
O3
μg/m³
126.4
PM2.5
μg/m³
7
NO2
μg/m³
5.2
Weather
  • ℃
  • ℉
22℃
31%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • O3
  • PM2.5
  • NO2
Places included
St. Catharines
AQI 52
St. Catharines
AQI 54
Data Sources
http://www.airnow.gov/http://www.airqualityontario.com/

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Saint Catharines
AQI 53
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AQI 10
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Niagara Falls
AQI 10
Welland
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Youngstown
AQI 14
Lincoln
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Ransomville
AQI 14
Port Colborne
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