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This project aims to develop a real-time air pollution monitoring system using Arduino microcontrollers and various sensors.

June 7, 2026Open Access

Iot (Internet of Things) Real-Time Smart Monitoring of Environmental Parameters Using Arduino Uno Rev. 3

Key Points

This project aims to develop a real-time air pollution monitoring system using Arduino microcontrollers and various sensors.
Developed using Arduino Uno microcontroller and gas sensors (SQM135, MQ6) for monitoring air quality.
Integrated DHT11 sensor for measuring temperature and humidity, with data recorded on a remote server.
Utilized Microsoft Excel for data analysis and displayed results on a hardware interface accessible via the Cloud.
The air quality monitoring system provides accurate measurements in parts per million (ppm).
Sustained remote data accessibility through Cloud services, indicating effectiveness in real-time monitoring.
Demonstrated successful integration of environmental sensors with mobile device access, enhancing user engagement.

Abstract

Atmospheric pollution affects our daily activities and quality of life. Laying a threat to the ecosystem and the quality of life on the planet. It has become imperative to monitor air quality. Due to an increase in industrial activities. People need to know the extent to which their activities in real time affect air quality. This project proposes an air pollution monitoring system. The system was developed using the Arduno One Anu microcontroller, the SQM135 and MQ6 gas sensors, DHT11 for temperature and humidity and other circuit elements. This atmospheric pollution monitoring system has been designed to monitor and analyze the air quality in real time and record data on a remote server, maintaining the data updated via the Internet. The air quality measurements were based on parts per million metrics (ppm) and analyzed using Microsoft Excel. The air quality measures taken from the designed system have been accurate. The result was shown in the designed hardware display interface and can be accessible via the Cloud (NGROK server) on any smart mobile device.

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