Electronic system for citizens’ air quality mapping

The interest in low-cost sensors for detecting pollutants in both indoor and outdoor environments has increased over recent years, due to the growing awareness on the adverse effects on health that these pollutants elicit. We designed and developed an affordable portable personal sensing platform for air quality monitoring. An embedded microcontroller collects sampled data from five MOS gas and one particulate matter commercially available sensors, and wirelessly transmits it to a smartphone using Bluetooth Low Energy connection. An Android app has been built to display measures to the user and to send all collected data to a cloud service, were the samples are gathered. In this paper, we present the results of the developed system after being used by volunteers in a campaign at the Barcelona metropolitan area.