Are you sure the air you breathe is of good quality ? We are living in an age where the air you breathe in could be of a concern. Organization like airnow.gov are going to great heights to provide us air pollutant information valuable information.
WorldAQI is simple iPhone app which aggregates the air quality data across the major cities around the world . As of today we provide air quality information for entire north america, all major cities in Europe and major cities in Asia including China and we are constantly working to add more countries and cities through our partners.