uRADMonitor APP
You can use the app to see the #airquality in real time, the background gamma #radiation levels, the #noise level or concentration for various toxic gasses: ozone, sulphur dioxide, nitrogen dioxide, carbon monoxide and many more. There are thousands of these sensors deployed, allowing you to make comparisons from one location to another.
You'll have the power of an entire network in your palm, to see in real time all the values collected by more than 2000 sensors.