Air Quality and Hazardous Gas Detection using IoT for Household and Industrial Areas

Abstract

The detection and monitoring of hazardous gases is essential for ensuring the safety of individuals in various settings, such as industrial environments and residential areas. gas detectors detect gases like LPG, NH3, alcohol, NOx, Benzene, CO2, Alcohol, Propane, Hydrogen, Methane, Carbon Monoxide, and smoke in the area around them. In this study, we present a system for real-time detection and monitoring of hazardous gases using MQ135 and MQ2 sensors. The system consists of a monitor that is placed in a fixed location and a mobile device that can be carried by the user. The MQ135 sensor is used to detect gases such as ammonia, while the MQ2 sensor is used to detect gases such as carbon monoxide and hydrocarbons. Each of these gases is known through the Parts per Million (PPM) values and can be determined which gas it is. The system utilises a microcontroller to process the sensor data and display the gas concentrations on a user interface. The mobile device also has the capability to alert the user and send notifications through an accompanying App if the gas concentrations exceed a predetermined threshold. The system is reliable, accurate, and easy to use, making it an ideal solution for detecting and mitigating the risks associated with hazardous gases in various settings. The system was tested in various environments and was able to accurately detect and monitor the presence of hazardous gases and it is a reliable and convenient solution for detecting and monitoring hazardous gases in real-time.