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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 |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 60.8°F |
| Humidity | 66% |
| Wind | 5.7 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Tonasket, Washington | 100 |
| 2 | Nampa, Idaho | 79 |
| 3 | Corpus Christi, Texas | 68 |
| 4 | The Woodlands, Texas | 65 |
| 5 | Buffalo, New York | 61 |
| 6 | Austin, Texas | 59 |
| 7 | Cleveland, Ohio | 59 |
| 8 | Carlisle, Pennsylvania | 58 |
| 9 | Dunmore, Pennsylvania | 58 |
| 10 | Throop, Pennsylvania | 58 |
(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 | 40 |
| 2 | Haven Ave | 25 |
(local time)
SEE WORLD AQI RANKING
US AQI
33
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 33 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 7.9µg/m³ | |
| NO2 | 30.5µg/m³ | |
!
PM2.5
x1.6
PM2.5 concentration in Ontario is currently 1.6 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 |
|---|---|---|---|---|
| Thursday, Apr 25 | Good 22 AQI US |  | 62.6° 51.8° |  11.2 mp/h |
| Friday, Apr 26 | Good 32 AQI US |  | 71.6° 51.8° | 8.9 mp/h |
| Saturday, Apr 27 | Good 41 AQI US | | 77° 55.4° | 8.9 mp/h |
| Today | Good 33 AQI US | | 78.8° 59° | 8.9 mp/h |
| Monday, Apr 29 | Good 47 AQI US | | 78.8° 59° | 8.9 mp/h |
| Tuesday, Apr 30 | Good 40 AQI US | | 77° 59° | 8.9 mp/h |
| Wednesday, May 1 | Good 22 AQI US | | 82.4° 60.8° | 11.2 mp/h |
| Thursday, May 2 | Good 11 AQI US | | 84.2° 64.4° | 11.2 mp/h |
| Friday, May 3 | Good 31 AQI US | | 75.2° 55.4° | 13.4 mp/h |
| Saturday, May 4 | Good 25 AQI US |  90% | 62.6° 53.6° | 13.4 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