1. North America
  2. Canada
  3. Ontario
  4. Niagara Regional Municipality
  6. Saint Catharines

Saint Catharines

St. Catharines, Niagara Regional Municipality

2025-12-29 17:00
AQI (Netherlands)
Moderate
Pollutants
O3
μg/m³
49.3
NO2
μg/m³
4.1
PM2.5
μg/m³
3
Weather
  • ℃
  • ℉
-2℃
73%
50 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (Netherlands)
  • O3
  • NO2
  • PM2.5
Places included
St. Catharines
AQI 4
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Saint Catharines
AQI 4
Thorold
AQI 1
Niagara Falls
AQI 1
Lewiston
AQI 1
Niagara-on-the-Lake
AQI 1
Niagara Falls
AQI 1
Welland
AQI 1
Youngstown
AQI 1
Lincoln
AQI 1
Ransomville
AQI 1
Port Colborne
AQI 2