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 contributors Sources
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Weather
What is the current weather in Ontario?
| Weather | Mist |
| Temperature | 59°C |
| Humidity | 67% |
| Wind | 3.4 mp/h |
| Pressure | 1011 mb |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Beltsville, Maryland | 142 |
| 2 | Charlotte Hall, Maryland | 130 |
| 3 | Nogales, Arizona | 115 |
| 4 | Terrell, Texas | 115 |
| 5 | Yucaipa, California | 98 |
| 6 | Highland, California | 94 |
| 7 | Redlands, California | 93 |
| 8 | San Antonio, Texas | 92 |
| 9 | Rancho Cucamonga, California | 89 |
| 10 | Rye, New Hampshire | 88 |
(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 Ranch | 85 |
(local time)
SEE WORLD AQI RANKINGUS AQI
85
live AQI index
Moderate
Overview
What is the current air quality in Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 85 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 28.2 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 |
|---|---|---|---|---|
| Thursday, Apr 8 | Moderate 57 US AQI | |||
| Friday, Apr 9 | Moderate 65 US AQI | |||
| Saturday, Apr 10 | Moderate 73 US AQI | |||
| Sunday, Apr 11 | Moderate 68 US AQI |  | 75.2°57.2° |  4.5 mp/h |
| Today | Good 39 US AQI  | | 66.2°55.4° | 4.5 mp/h |
| Tuesday, Apr 13 | Good 27 US AQI | | 66.2°50° | 2.2 mp/h |
| Wednesday, Apr 14 | Good 40 US AQI | | 69.8°51.8° | 4.5 mp/h |
| Thursday, Apr 15 | Good 45 US AQI |  | 75.2°55.4° | 2.2 mp/h |
| Friday, Apr 16 | Good 36 US AQI | | 84.2°59° | 2.2 mp/h |
| Saturday, Apr 17 | Good 40 US AQI | | 82.4°64.4° | 15.7 mp/h |
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Historical
Historic air quality graph for Ontario
How to best protect from air pollution?
Ontario air quality data sources
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Where is the cleanest air quality in Ontario?
