AQM can measure the PM10 in an OUTDOOR environment just using your smartphone camera! Main features:- Measurement page- Calibration page- History page- PM10 & AQI chart- Air quality standards: EPA, CITEAIR, CITEAIR24Quick start:- check the environmental requirements before measuring- follow the step by step hintsPlease consider that this is an EXPERIMENTAL app. Feel free to contact us for any suggestion or issue (use the “Email Us” button on the Start page)This application is not intended to replace scientific instrumentation, but with a good calibration it can come close to a real device.