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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
2 Contributors
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Pollen
What is the pollen count in Ontario today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 57.2°F |
| Humidity | 75% |
| Wind | 13 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 143 |
| 2 | Springville, California | 88 |
| 3 | Wichita, Kansas | 76 |
| 4 | Cary, North Carolina | 70 |
| 5 | Tonasket, Washington | 69 |
| 6 | Casa Grande, Arizona | 68 |
| 7 | Fuquay-Varina, North Carolina | 68 |
| 8 | Greensboro, North Carolina | 65 |
| 9 | Winston-Salem, North Carolina | 65 |
| 10 | Harrisburg, Pennsylvania | 64 |
(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 | Ontario-Route 60 Near Road | 59 |
| 2 | Haven Ave | 47 |
(local time)
SEE WORLD AQI RANKING
Spotlight
Rubidoux has "Unhealthy for Sensitive Groups" air quality. See the map and health recommendations.
US AQI
39
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 39 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 9.3µg/m³ | |
| NO2 | 55.5µg/m³ | |
!
PM2.5
x1.9
PM2.5 concentration in Ontario is currently 1.9 times 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 |
|---|---|---|---|---|
| Tuesday, Apr 16 | Good 40 AQI US |  | 80.6° 60.8° |  8.9 mp/h |
| Wednesday, Apr 17 | Moderate 52 AQI US  |  | 77° 60.8° | 8.9 mp/h |
| Thursday, Apr 18 | Moderate 59 AQI US | | 71.6° 55.4° | 8.9 mp/h |
| Today | Good 39 AQI US |  | 78.8° 55.4° | 6.7 mp/h |
| Saturday, Apr 20 | Good 45 AQI US | | 86° 62.6° | 8.9 mp/h |
| Sunday, Apr 21 | Moderate 53 AQI US | | 80.6° 62.6° | 11.2 mp/h |
| Monday, Apr 22 | Good 28 AQI US | | 73.4° 57.2° | 11.2 mp/h |
| Tuesday, Apr 23 | Good 15 AQI US | | 68° 53.6° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 18 AQI US | | 69.8° 53.6° | 11.2 mp/h |
| Thursday, Apr 25 | Good 17 AQI US |  20% | 62.6° 55.4° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Ontario air quality data attribution
2Contributors
- California Air Resources Board (CARB)
1 station
Government Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Ontario?
AQI US, Metric