St. Catharines Real-time Air Quality Index (AQI) & Pollution Report - Air Matters

St. Catharines

Niagara Regional Municipality

2026-09-07 09:00

CAQI (Europe)

Very Low

PM2.5

μg/m³

7

NO2

μg/m³

10.3

O3

μg/m³

4.3

Weather

13℃

99%

7 kph

0 of 11

Historical Data

Places included

Saint Catharines

Data Sources

http://www.airnow.gov/

Get the App

Air Matters

Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Saint Catharines

Niagara-on-the-Lake