Carnegie Mellon’s Pittsburgh smells app goes nationwide, crowdsourcing where the air is worst

Carnegie Mellon’s Pittsburgh smells app goes nationwide, crowdsourcing where the air is worst

Some Allegheny County residents use a smartphone app to report foul smells in their communities, and a new version of that app is now available to the rest of the country. For three years, people in the Pittsburgh area have documented their experiences with odors with just a few taps of a finger via Smell PGH.