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

St. Catharines

Niagara Regional Municipality

2026-01-20 19:00

AQI (US)

Good

O3

μg/m³

79.3

PM2.5

μg/m³

5

NO2

μg/m³

8.2

Weather

-10℃

60%

33 kph

0 of 11

Historical Data

Places included

Saint Catharines

Data Sources

http://www.airnow.gov/

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Cities Nearby

Saint Catharines

Niagara-on-the-Lake