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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 | Moderate | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 71.6°F |
| Humidity | 28% |
| Wind | 12.7 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Omaha, Nebraska | 123 |
| 2 | Emmetsburg, Iowa | 106 |
| 3 | Carter Lake, Iowa | 93 |
| 4 | Oklahoma City, Oklahoma | 93 |
| 5 | Decorah, Iowa | 92 |
| 6 | Edmond, Oklahoma | 88 |
| 7 | Wichita, Kansas | 88 |
| 8 | Apple Valley, Minnesota | 87 |
| 9 | Rochester, Minnesota | 87 |
| 10 | Lincoln, Nebraska | 86 |
(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 | Owyhee Dead Ox Ontario | 22 |
| 2 | Ontario May Roberts Elementary School | 13 |
(local time)
SEE WORLD AQI RANKING
US AQI
17
live AQI index
Good
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 17 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.2µg/m³ | |
✓
PM2.5 concentration in Ontario air currently meets 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 |
|---|---|---|---|---|
| Saturday, May 11 | Good 24 AQI US |  | 84.2° 55.4° |  8.9 mp/h |
| Sunday, May 12 | Good 23 AQI US | | 82.4° 57.2° | 8.9 mp/h |
| Monday, May 13 | Good 16 AQI US |  | 77° 51.8° | 8.9 mp/h |
| Today | Good 17 AQI US |  | 77° 50° | 4.5 mp/h |
| Wednesday, May 15 | Good 15 AQI US | | 84.2° 53.6° | 15.7 mp/h |
| Thursday, May 16 | Good 8 AQI US | | 69.8° 51.8° | 20.1 mp/h |
| Friday, May 17 | Good 7 AQI US | | 71.6° 42.8° | 11.2 mp/h |
| Saturday, May 18 | Good 12 AQI US | | 64.4° 42.8° | 11.2 mp/h |
| Sunday, May 19 | Good 7 AQI US | | 68° 41° | 6.7 mp/h |
| Monday, May 20 | Good 8 AQI US |  80% | 64.4° 44.6° | 8.9 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
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Ontario?
AQI US, Metric