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

Saint Catharines

St. Catharines, Niagara Regional Municipality

2026-07-16 10:00
AQI (Netherlands)
Very Bad
Pollutants
PM2.5
μg/m³
183
O3
μg/m³
25.7
NO2
μg/m³
16.4
Weather
  • ℃
  • ℉
21℃
80%
15 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (Netherlands)
  • PM2.5
  • O3
  • NO2
Places included
St. Catharines
AQI 11
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 11
Thorold
AQI 11
Niagara Falls
AQI 11
Lewiston
AQI 11
Niagara-on-the-Lake
AQI 11
Niagara Falls
AQI 11
Welland
AQI 11
Youngstown
AQI 11
Lincoln
AQI 11
Ransomville
AQI 11
Port Colborne
AQI 7