AddAir quality in Ontario
Air quality index (AQI⁺) and PM2.5 air pollution in Ontario • 1.7K Followers • 11:00, Sep 05 Local time
27
US AQI⁺Good
Main pollutant:
PM2.5
4.8 µg/m³
19°
2 km/h
46 %
Hourly forecast
Ontario air quality index (AQI⁺) forecast
Daily forecast
Ontario air quality index (AQI⁺) forecast
| Today | 28 | | 24° 7° |  9 km/h | 52% |
| Sun | 16 |  | 26° 10° | 38 km/h | 53% |
| Mon | 13 | | 22° 13° | 15 km/h | 54% |
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 |
Protect yourself from air pollution in Ontario
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Filtration for air conditioners
A cut-to-fit filtration for air conditioning systems, LifeShield Lite helps reduce dust in the air conditioner while capturing indoor air pollutants.
Sustainable, smart air purifiers
Elegantly designed using sustainably sourced beech wood, the Atem Earth delivers medical-grade filtration by capturing ultrafine particles with HyperHEPA technology.
Pollen
What is the pollen count in Ontario today?
Index
Low
 Tree None | 0% |
 Grass None | 0% |
 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
Low
Tree None | 0% |
Grass None | 0% |
Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in Ontario
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Filtration for air conditioners
A cut-to-fit filtration for air conditioning systems, LifeShield Lite helps reduce dust in the air conditioner while capturing indoor air pollutants.
Sustainable, smart air purifiers
Elegantly designed using sustainably sourced beech wood, the Atem Earth delivers medical-grade filtration by capturing ultrafine particles with HyperHEPA technology.
Most polluted locations near Ontario
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Ontario
City ranking
Real-time USA AQI⁺ city ranking
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
City ranking
Real-time USA AQI⁺ city ranking
Measure your own air quality
Get a monitor and contribute air quality data in your city.
