The solution solves the problem of low-cost real time monitoring of NO2 exposure to citizens esp. in urban centers in Europe and around the world.
The prototype consists of a mobile, battery powered sensor module to collect environmental data, i.e. nitrogen dioxide (NO2) concentration, temperature, humidity, and pressure, and transfer it via a Bluetooth low energy protocol to a smartphone app every 30s. The NO2 gas sensing technology is based on Photoacoustic detection allows for sensitive and selective determination of NO2 concentration in ambient air. The app has a mapping functionality to plot the real time NO2 and environmental data from the sensors along with option to download historical data.