Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Markham
Air quality index (AQI) and PM2.5 air pollution in Markham
2K people follow this city
Markham Air Quality Map
Real-time Markham air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Markham today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Markham?
| Weather | Broken clouds |
| Temperature | 46.4°F |
| Humidity | 78% |
| Wind | 11.9 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Valemount, British Columbia | 57 |
| 2 | Canmore, Alberta | 45 |
| 3 | Oakville, Ontario | 40 |
| 4 | Levis, Quebec | 39 |
| 5 | Lac La Biche, Alberta | 34 |
| 6 | Montreal, Quebec | 33 |
| 7 | Cold Lake, Alberta | 32 |
| 8 | Gatineau, Quebec | 31 |
| 9 | Peace River, Alberta | 31 |
| 10 | Sault Ste Marie, Ontario | 31 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Markham aqi ranking
Real-time Markham air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 118 Risebrough Circuit | 27 |
(local time)
SEE WORLD AQI RANKING
US AQI
27
live AQI index
Good
Overview
What is the current air quality in Markham?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 27 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.5µg/m³ | |
!
PM2.5
x1.3
PM2.5 concentration in Markham is currently 1.3 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 |
|---|---|---|---|---|
| Wednesday, Apr 24 | Good 26 AQI US | | 46.4° 30.2° |  4.5 mp/h |
| Thursday, Apr 25 | Good 33 AQI US |  | 51.8° 32° | 13.4 mp/h |
| Friday, Apr 26 | Good 26 AQI US |  | 51.8° 41° | 13.4 mp/h |
| Today | Good 27 AQI US | 90% | 51.8° 41° | 13.4 mp/h |
| Sunday, Apr 28 | Good 45 AQI US | 100% | 60.8° 51.8° | 11.2 mp/h |
| Monday, Apr 29 | Good 36 AQI US | 100% | 51.8° 42.8° | 13.4 mp/h |
| Tuesday, Apr 30 | Good 47 AQI US | 100% | 50° 46.4° | 11.2 mp/h |
| Wednesday, May 1 | Good 39 AQI US | | 62.6° 46.4° | 6.7 mp/h |
| Thursday, May 2 | Moderate 51 AQI US  | | 68° 46.4° | 8.9 mp/h |
| Friday, May 3 | Good 30 AQI US | 100% | 60.8° 48.2° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Markham air quality data attribution
1Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Markham?
AQI US, Metric