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Air quality in Ontario
Air quality index (AQI) and PM2.5 air pollution in Ontario
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Ontario Air Quality Map
Real-time Ontario air pollution map
AIR QUALITY DATA CONTRIBUTORS
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Pollen
What is the pollen count in Ontario today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 37.4°F |
| Humidity | 63% |
| Wind | 4.6 mp/h |
| Pressure | 30.3 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Deschutes River Woods, Oregon | 96 |
| 2 | Visalia, California | 95 |
| 3 | Catonsville, Maryland | 92 |
| 4 | Downey, California | 91 |
| 5 | San Gabriel, California | 89 |
| 6 | Monterey Park, California | 83 |
| 7 | Compton, California | 82 |
| 8 | Alhambra, California | 78 |
| 9 | Elizabethtown, Pennsylvania | 78 |
| 10 | South Gate, California | 77 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Ontario aqi ranking
Real-time Ontario air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Owyhee Dead Ox Ontario | 13 |
| 2 | Ontario May Roberts Elementary School | 10 |
(local time)
SEE WORLD AQI RANKING
US AQI
5
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 5 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1.2µg/m³ | |
✓
PM2.5 concentration in Ontario air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Ontario?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Ontario air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 15 | Good 11 AQI US |  | 59° 41° |  13.4 mp/h |
| Tuesday, Apr 16 | Good 12 AQI US |  | 53.6° 33.8° | 13.4 mp/h |
| Wednesday, Apr 17 | Good 10 AQI US | | 55.4° 33.8° | 8.9 mp/h |
| Today | Good 5 AQI US | | 55.4° 33.8° | 8.9 mp/h |
| Friday, Apr 19 | Good 11 AQI US | | 59° 35.6° | 4.5 mp/h |
| Saturday, Apr 20 | Good 8 AQI US | | 68° 41° | 11.2 mp/h |
| Sunday, Apr 21 | Good 7 AQI US | | 59° 46.4° | 13.4 mp/h |
| Monday, Apr 22 | Good 5 AQI US | | 59° 37.4° | 6.7 mp/h |
| Tuesday, Apr 23 | Good 10 AQI US | | 68° 42.8° | 4.5 mp/h |
| Wednesday, Apr 24 | Good 14 AQI US | | 68° 48.2° | 8.9 mp/h |
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News
The latest air quality news and resources.
Ontario air quality data attribution
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Ontario?
AQI US, Metric