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 | Scattered clouds |
| Temperature | 51.8°F |
| Humidity | 86% |
| Wind | 5.3 mp/h |
| Pressure | 29.8 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Pinehouse, Saskatchewan | 166 |
| 2 | Patricia Mcinnes, Alberta | 165 |
| 3 | Cold Lake, Alberta | 106 |
| 4 | Lac La Biche, Alberta | 103 |
| 5 | London, Ontario | 70 |
| 6 | Hamilton, Ontario | 63 |
| 7 | Saguenay, Quebec | 61 |
| 8 | Waterloo, Ontario | 60 |
| 9 | Burlington, Ontario | 58 |
| 10 | Toronto, Ontario | 58 |
(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 | 64 |
(local time)
SEE WORLD AQI RANKING
US AQI
64
live AQI index
Moderate
Overview
What is the current air quality in Markham?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 64 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 16µg/m³ | |
!
PM2.5
x3.2
PM2.5 concentration in Markham is currently 3.2 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Markham?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Markham air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, May 13 | Moderate 65 AQI US |  | 62.6° 53.6° |  6.7 mp/h |
| Tuesday, May 14 | Moderate 59 AQI US | | 64.4° 48.2° | 6.7 mp/h |
| Wednesday, May 15 | Moderate 61 AQI US |  | 69.8° 51.8° | 6.7 mp/h |
| Today | Moderate 64 AQI US | | 69.8° 51.8° | 6.7 mp/h |
| Friday, May 17 | Moderate 61 AQI US | 100% | 60.8° 51.8° | 8.9 mp/h |
| Saturday, May 18 | Moderate 53 AQI US | | 68° 55.4° | 6.7 mp/h |
| Sunday, May 19 | Moderate 55 AQI US | | 69.8° 55.4° | 6.7 mp/h |
| Monday, May 20 | Good 48 AQI US  | | 73.4° 59° | 11.2 mp/h |
| Tuesday, May 21 | Good 24 AQI US | 40% | 77° 55.4° | 13.4 mp/h |
| Wednesday, May 22 | Good 34 AQI US | 100% | 71.6° 51.8° | 20.1 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
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