The Real World Performance Evaluation between Integrated Intelligent Pollutants Prototype and Physical Monitoring Device

Abstract

The presence of air pollutants in enclosed spaces such as buildings and vehicle cabins can have serious health consequences and therefore it's essential to have a monitoring system that can alert users of the presence of harmful gases. This study reports on the second phase of the development of an indoor air quality (IAQ) monitoring device that is equipped with sensors to measure particulate matter (PM), carbon monoxide (CO), carbon dioxide (CO₂), temperature, humidity, and air velocity. The device was tested on a moving bus from Kuala Terengganu to Penang, Malaysia, to measure in-vehicle air quality. The data collected was displayed on a liquid crystal display (LCD) and stored on an SD card, and compared to commercial devices for validation. The results showed that the prototype performed well in measuring temperature, humidity, CO₂, and particulate matter, but did not detect CO gas. Further improvements in the technology and integration with cloud databases are needed to enhance the accuracy and reliability of air pollutant measurement in enclosed spaces.