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

St. Catharines

Niagara Regional Municipality

2025-12-20 21:00

AQC (Australia)

Good

O3

μg/m³

62.1

PM2.5

μg/m³

4

NO2

μg/m³

10.3

Weather

7℃

41%

41 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