AddAir quality in Ontario
Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 1.5K Followers • 09:00, Jun 01 Local time
21
US AQI⁺Good
Main pollutant:
PM2.5
3.8 µg/m³
18°
6 km/h
43 %
Hourly forecast
Ontario air quality index (AQI⁺) forecast
Daily forecast
Ontario air quality index (AQI⁺) forecast
| Today | 20 | | 26° 8° |  11 km/h | 39% |
| Tue | 20 | | 28° 9° | 12 km/h | 41% |
| Wed | 24 |  | 30° 14° | 33 km/h | 29% |
Air pollutants
What is the current air quality in Ontario?
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 Ontario today?
Index
Moderate
 Tree Low | 25% |
 Grass Moderate | 50% |
 Weed Low | 25% |
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 Ontario today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Low | 25% |
Source:
wetter.comMost polluted locations near Ontario
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Ontario
Historic air quality near Ontario
History
Historic air quality graph for Ontario
Historic air quality near Ontario
History
Historic air quality graph for Ontario
Most polluted locations near Ontario
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in Ontario
Measure your own air quality
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