Ambient Air Quality Monitoring System

These days, air pollution is a major problem. For a better future and everyone’s health, Monitoring and controlling air quality are crucial. Here, we suggest an IOT-based system for live air quality monitoring that enables monitoring and evaluation of the air quality in real-time. When hazardous gases and compounds are present in the air, the system uses air sensors to continually relay data to the microcontroller. The system also continuously monitors the levels and transmits its findings via IOT to an online server. The microcontroller receives data from the sensors and processes it before sending it via the internet. When the air quality drops below a particular point, which occurs when dangerous gases including CO2, smoking, alcohol, benzene, NH3, and NOx are sufficiently prevalent in the air, an alarm will sound and an alert message will be issued. It will make it very simple to monitor air pollution because it would show the air quality in PPM on the LCD and internet. The MQ6, MQ7, MQ2, and MQ135 sensors are used by the system to monitor air quality since they can correctly measure and detect the majority of hazardous substances.