theAir app for iPhone and iPad
USAir, an app tell you what current air quality in you city now.
Jogging, bike ridding are good aerobics for you, but dont let bad air quality harm you, before your outdoor excise, check the air out.
Feature:
* simple,learnless UI,
* support most city of american.
* refresh when you lunch it.
* tweet it, tell your friend about it,have a jogging.