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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 | Very high | |
 | Tree pollen | Moderate | |
 | Grass pollen | Very high | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Markham?
| Weather | Broken clouds |
| Temperature | 80.6°F |
| Humidity | 78% |
| Wind | 12.7 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Harrisburg, Pennsylvania | 63 |
| 2 | Corpus Christi, Texas | 62 |
| 3 | Lancaster, Pennsylvania | 60 |
| 4 | The Woodlands, Texas | 59 |
| 5 | Carlisle, Pennsylvania | 58 |
| 6 | Elizabethtown, Pennsylvania | 58 |
| 7 | Galveston, Texas | 58 |
| 8 | Kalamazoo, Michigan | 56 |
| 9 | Allentown, Pennsylvania | 55 |
| 10 | Emmetsburg, Iowa | 55 |
(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 | 10.9*µg/m³ | |
!
PM2.5
x2.2
PM2.5 concentration in Markham is currently 2.2 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 |  90% | 80.6° 71.6° |  20.1 mp/h |
| Monday, Apr 29 | Good 40 AQI US | 70% | 84.2° 71.6° | 8.9 mp/h |
| Tuesday, Apr 30 | Good 38 AQI US | 100% | 84.2° 71.6° | 13.4 mp/h |
| Wednesday, May 1 | Good 43 AQI US | | 82.4° 73.4° | 17.9 mp/h |
| Thursday, May 2 | Good 41 AQI US | | 82.4° 73.4° | 17.9 mp/h |
| Friday, May 3 | Moderate 62 AQI US  |  | 86° 71.6° | 15.7 mp/h |
| Saturday, May 4 | Moderate 70 AQI US | 100% | 84.2° 69.8° | 15.7 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