Relatively Low-Cost Personal Mobile Device for PM2.5, CO, and CO2 Measurements Coupled with Positioning, Cellular Network Cloud Computing and Storage, and Web Application UI

In recent years, several approaches have been made to find cheaper alternatives using low-cost systems for monitoring air pollution. These approaches have been somewhat lacking and are only applicable to stationary measurements, which usually employs accurate sensors, but bulky and expensive. This paper shows that a portable low-cost device that is capable of monitoring air pollutants is possible at a fraction of the cost. It uses a sampling mechanism with its sensors to gather PM2.5, CO, and CO2 air pollutants for measurement as well as a GPS sensor for location tagging. It comes with a web app user interface for tracking air pollutant readings with a database for data history.