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St. Catharines

Saint Catharines, Niagara Regional Municipality

2026-10-14 23:00
AQI (Netherlands)
Moderate
Pollutants
O3
μg/m³
51.4
NO2
μg/m³
4.1
PM2.5
μg/m³
2
Weather
  • ℃
  • ℉
14℃
70%
24 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (Netherlands)
  • O3
  • NO2
  • PM2.5
Data Sources
http://www.airnow.gov/

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