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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 | Broken clouds |
| Temperature | 59°F |
| Humidity | 78% |
| Wind | 15 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Olancha, California | 105 |
| 2 | Keeler, California | 95 |
| 3 | Pahrump, Nevada | 80 |
| 4 | Pioneer, California | 78 |
| 5 | Lone Pine, California | 66 |
| 6 | Coachella, California | 61 |
| 7 | Mecca, California | 61 |
| 8 | Oklahoma City, Oklahoma | 57 |
| 9 | Ann Arbor, Michigan | 55 |
| 10 | Corpus Christi, Texas | 55 |
(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 | 44 |
| 2 | Haven Ave | 30 |
(local time)
SEE WORLD AQI RANKING
US AQI
36
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 36 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.8µg/m³ | |
| NO2 | 24.6µg/m³ | |
!
PM2.5
x1.8
PM2.5 concentration in Ontario is currently 1.8 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 |
|---|---|---|---|---|
| Wednesday, May 1 | Moderate 59 AQI US  |  | 77° 57.2° |  8.9 mp/h |
| Thursday, May 2 | Moderate 56 AQI US |  | 73.4° 57.2° | 8.9 mp/h |
| Friday, May 3 | Moderate 56 AQI US | | 66.2° 57.2° | 13.4 mp/h |
| Today | Good 36 AQI US |  70% | 66.2° 51.8° | 11.2 mp/h |
| Sunday, May 5 | Good 17 AQI US | | 75.2° 51.8° | 8.9 mp/h |
| Monday, May 6 | Good 31 AQI US | | 75.2° 57.2° | 8.9 mp/h |
| Tuesday, May 7 | Good 28 AQI US | | 80.6° 59° | 8.9 mp/h |
| Wednesday, May 8 | Good 18 AQI US | | 78.8° 60.8° | 8.9 mp/h |
| Thursday, May 9 | Good 34 AQI US | | 77° 59° | 11.2 mp/h |
| Friday, May 10 | Good 36 AQI US | | 77° 59° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
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