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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 | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | High | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 46.4°F |
| Humidity | 86% |
| Wind | 0 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 92 |
| 2 | Canton, Ohio | 83 |
| 3 | Claremont, California | 83 |
| 4 | Glendora, California | 82 |
| 5 | San Fernando, California | 79 |
| 6 | La Verne, California | 77 |
| 7 | Marina del Rey, California | 77 |
| 8 | Coachella, California | 75 |
| 9 | Alhambra, California | 74 |
| 10 | Monterey Park, California | 74 |
(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 | Park Avenue West | 39 |
(local time)
SEE WORLD AQI RANKING
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 | 7.1µg/m³ | |
!
PM2.5
x1.4
PM2.5 concentration in Ontario is currently 1.4 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 29 | Good 24 AQI US |  | 62.6° 39.2° |  8.9 mp/h |
| Thursday, May 30 | Good 31 AQI US | | 69.8° 42.8° | 4.5 mp/h |
| Friday, May 31 | Good 38 AQI US |  | 71.6° 46.4° | 8.9 mp/h |
| Today | Good 39 AQI US | | 71.6° 46.4° | 8.9 mp/h |
| Sunday, Jun 2 | Moderate 59 AQI US  |  100% | 68° 55.4° | 15.7 mp/h |
| Monday, Jun 3 | Moderate 53 AQI US | | 75.2° 55.4° | 4.5 mp/h |
| Tuesday, Jun 4 | Moderate 56 AQI US | 100% | 71.6° 60.8° | 8.9 mp/h |
| Wednesday, Jun 5 | Moderate 61 AQI US | 100% | 69.8° 59° | 15.7 mp/h |
| Thursday, Jun 6 | Good 31 AQI US | 100% | 68° 51.8° | 17.9 mp/h |
| Friday, Jun 7 | Good 12 AQI US | 100% | 53.6° 46.4° | 15.7 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Ontario air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Ontario?
AQI US, Metric