Internet of Things-based Air Quality Monitoring system using Carbon Monoxide and Particulate Matter Parameters

The Internet of Things-Based Air Quality Monitoring System Using Carbon Monoxide and Particulate Matter Parameters is designed to monitor environmental pollution levels by measuring harmful gases and atmospheric conditions using IoT technology. The proposed system utilizes an MQ-7 sensor to detect carbon monoxide concentration, a PMS5003 sensor to measure particulate matter levels, an MQ-135 sensor for overall air quality monitoring, and a DHT11 sensor to measure temperature and humidity conditions. An Arduino microcontroller collects data from all sensors and processes the environmental parameters, while an LCD module displays the monitored values locally. The NodeMCU module enables data transmission to the ThingSpeak IoT cloud platform for remote monitoring and storage. When pollution levels exceed safe limits, a buzzer alert is activated to provide immediate warning. This system provides an efficient solution for continuous air pollution monitoring and supports environmental safety by enabling cloud-based observation and early detection of harmful air conditions.