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Air quality in Markham
Air quality index (AQI) and PM2.5 air pollution in Markham
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Markham Air Quality Map
Real-time Markham air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Markham today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Markham?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 67% |
| Wind | 12.7 mp/h |
| Pressure | 29.5 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Casa Grande, Arizona | 77 |
| 2 | Bridgeport, Connecticut | 72 |
| 3 | Boerne, Texas | 68 |
| 4 | San Antonio, Texas | 67 |
| 5 | Lancaster, Pennsylvania | 65 |
| 6 | Washington, Pennsylvania | 65 |
| 7 | Allentown, Pennsylvania | 64 |
| 8 | Baltimore, Maryland | 64 |
| 9 | The Woodlands, Texas | 64 |
| 10 | Camden, New Jersey | 63 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
45*
live AQI index
Good
Overview
What is the current air quality in Markham?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 45* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.1*µg/m³ | |
!
PM2.5
x1.6
PM2.5 concentration in Markham is currently 1.6 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Markham?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Markham air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 45 AQI US |  100% | 75.2° 57.2° |  15.7 mp/h |
| Wednesday, May 8 | Good 24 AQI US | 60% | 77° 55.4° | 6.7 mp/h |
| Thursday, May 9 | Moderate 53 AQI US  | 90% | 60.8° 48.2° | 8.9 mp/h |
| Friday, May 10 | Good 11 AQI US | 60% | 59° 48.2° | 8.9 mp/h |
| Saturday, May 11 | Good 9 AQI US | 100% | 51.8° 48.2° | 13.4 mp/h |
| Sunday, May 12 | Good 8 AQI US |  | 62.6° 46.4° | 6.7 mp/h |
| Monday, May 13 | Good 14 AQI US | 60% | 75.2° 55.4° | 8.9 mp/h |
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News
The latest air quality news and resources.
Where is the cleanest air quality in Markham?
No locations are available.
AQI US, Metric