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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
Ontario AIR POLLUTION MAP
Data source
* AQI modeled using satellite data
Weather
What is the current weather in Ontario?
| Weather | Clear sky |
| Temperature | 69.8°C |
| Humidity | 64% |
| Wind | 2.1 mp/h |
| Pressure | 1016 mb |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Clifton | 151 |
| 2 | Palisade | 148 |
| 3 | Union | 143 |
| 4 | Steamboat Springs | 137 |
| 5 | Hidden Valley | 134 |
| 6 | Walden | 132 |
| 7 | Desert Hot Springs | 129 |
| 8 | Laramie | 124 |
| 9 | Fruitvale | 118 |
| 10 | Baldwin City | 117 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Ontario aqi ranking
Real-time Ontario air quality ranking
City AQI based on satellite data. No ground level station currently available in Ontario.
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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 | 14.1 µg/m³ | |
Health Recommendations
How to protect from air pollution in Ontario?
 | Close your windows to avoid dirty outdoor air |
 | Sensitive groups should reduce outdoor exercise |
Forecast
Ontario air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Saturday, Dec 28 | Good8 US AQI  | |||
| Sunday, Dec 29 | Good8 US AQI | |||
| Monday, Dec 30 | Good1 US AQI | |||
| Today | Moderate61 US AQI | | 91.4°71.6° |  2.2 mp/h |
| Sunday, Aug 9 | Moderate69 US AQI | | 93.2°69.8° | 2.2 mp/h |
| Monday, Aug 10 | Moderate63 US AQI | | 93.2°69.8° | 2.2 mp/h |
| Tuesday, Aug 11 | Moderate58 US AQI | | 93.2°71.6° | 2.2 mp/h |
| Wednesday, Aug 12 | Moderate66 US AQI |  | 95°71.6° | 2.2 mp/h |
| Thursday, Aug 13 | Moderate67 US AQI |  | 98.6°77° | 2.2 mp/h |
Interested in hourly forecast? Get the app
Historical
Historic air quality graph for Ontario
How to best protect from air pollution?
Community Contributors
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Data validated and calibrated by AirVisualWhere is the cleanest air quality in Ontario?
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