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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 | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Broken clouds |
| Temperature | 71.6°F |
| Humidity | 59% |
| Wind | 21.9 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Denton, Texas | 75 |
| 2 | Fort Worth, Texas | 75 |
| 3 | Lewisville, Texas | 73 |
| 4 | Oklahoma City, Oklahoma | 73 |
| 5 | Edmond, Oklahoma | 70 |
| 6 | Tulsa, Oklahoma | 65 |
| 7 | Wichita, Kansas | 65 |
| 8 | Hampton, Virginia | 63 |
| 9 | Middletown, Ohio | 62 |
| 10 | Corpus Christi, Texas | 61 |
(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 | 55 |
(local time)
SEE WORLD AQI RANKING
US AQI
55
live AQI index
Moderate
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 55 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 13.9µg/m³ | |
!
PM2.5
x2.8
PM2.5 concentration in Ontario is currently 2.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Ontario?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Ontario air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, Apr 24 | Good 26 AQI US  | | 50° 28.4° |  8.9 mp/h |
| Thursday, Apr 25 | Good 29 AQI US |  | 68° 32° | 11.2 mp/h |
| Friday, Apr 26 | Good 43 AQI US | | 71.6° 53.6° | 20.1 mp/h |
| Today | Moderate 55 AQI US | 100% | 71.6° 53.6° | 20.1 mp/h |
| Sunday, Apr 28 | Moderate 52 AQI US | 60% | 73.4° 59° | 17.9 mp/h |
| Monday, Apr 29 | Good 49 AQI US | 80% | 69.8° 59° | 15.7 mp/h |
| Tuesday, Apr 30 | Good 46 AQI US | 100% | 68° 53.6° | 11.2 mp/h |
| Wednesday, May 1 | Good 49 AQI US | 90% | 69.8° 50° | 8.9 mp/h |
| Thursday, May 2 | Moderate 75 AQI US | 100% | 77° 57.2° | 13.4 mp/h |
| Friday, May 3 | Moderate 72 AQI US | 100% | 64.4° 50° | 15.7 mp/h |
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News
The latest air quality news and resources.
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