The document proposes an IOT-based air pollution monitoring system that uses sensors to monitor air quality in different areas. The sensors detect harmful gases and transmit the data to a microcontroller and then to the cloud, allowing authorities to monitor air pollution levels from different locations and address issues. The system includes NodeMCU, gas sensors, temperature/humidity sensors, and an LCD display. It is programmed using Arduino IDE and embedded C language. The goal is to help assess impacts of air pollution and determine if areas meet standards, as well as understand health effects and develop control measures.