AddAir quality in St. Catharines
Air quality index (AQI⁺) and PM2.5 air pollution in St. Catharines • 12.5K Followers • 18:00, Apr 18 Local time
38
US AQI⁺Good
Main pollutant:
O₃
94 µg/m³
17°
22 km/h
88 %
Hourly forecast
St. Catharines air quality index (AQI⁺) forecast
Daily forecast
St. Catharines air quality index (AQI⁺) forecast
| Today | 39 |  | 24° 9° |  38 km/h | 76% |
| Sun | 24 | | 7° 2° | 30 km/h | 74% |
| Mon | 11 |  | 4° -2° | 23 km/h | 52% |
Air pollutants
What is the current air quality in St. Catharines?
PM2.5 concentration currently meets the WHO annual PM2.5 guideline.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in St. Catharines today?
Index
Moderate
 Tree Moderate | 50% |
 Grass Moderate | 50% |
 Weed None | 0% |
Source:
wetter.comHealth recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in St. Catharines today?
Index
Moderate
Tree Moderate | 50% |
Grass Moderate | 50% |
Weed None | 0% |
Source:
wetter.comMost polluted locations near St. Catharines
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in St. Catharines
Historic air quality near St. Catharines
History
Historic air quality graph for St. Catharines
Historic air quality near St. Catharines
History
Historic air quality graph for St. Catharines
Most polluted locations near St. Catharines
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in St. Catharines
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