Low-Cost Air Pollution Monitoring Device Based on Air Quality Index

Abstract

With air pollution growing at an alarming rate, it is becoming necessary to quantify correctly the level of toxicity in the air. The novelty in our system relies on a cheap, affordable and quick measuring index for the air quality around us. It uses a portable battery powered hub based on an 8-bit microcontroller, equipped with several Metal Oxide Semiconductor (MOS) based gas sensors and Particulate matter (PM) sensors. The developed system acquires the sensor responses in real-time for accurate monitoring. A mobile application has been developed that converts the obtained sensor values to the standard Air Quality Index (AQI) and displays the final result. This ensures the user-friendliness of our project, keeping a constant check on the air quality around us.