Air Apps and Web Sites

Real Time World Air Pollution
Using either your location or a location search, this application uses air monitoring stations around the world provide up to date air quality ratings.
Breathe for COPD
Get reliable, real-time feedback on how to manage your COPD symptoms through this flare-up detection service.
Government of Canada Air Quality Health Index Information page
The Air Quality Health Index is a scale designed in Canada to help understand the impact of air quality on health.  
US and Canada wildfire Air Quality Map
Current information on forest fires and air quality in North America.  
Airvisual Earth
Explore air quality anywhere in the world.  
Sh**t I Smoke! App
How much are you ‘Smoking’ simply by breathing urban air?