International Journal of Environmental Science and Development

Abstract—Air quality is getting worse worldwide, especially in cities with high population density and many industrial parks. Raising community awareness and applying science and technology are effective ways to mitigate the negative impacts of industrialization and pollution on the natural environment as well as public health. This work presents the design and deployment of an IoT-based air quality monitoring system, named the Environmental Monitoring System (EnMoS). LoRa (Long-Range) wireless communication technology and innovation sensors being used aim to facilitate the development of data communication network over a large area, improving sensing reliability, extending battery life as well as reducing total system costs. The air quality factors such as particulate matter (PM2.5 and PM10), carbon dioxide (CO₂), air temperature and humidity, after being read from the sensors were uploaded to a real-time database server for Air Quality Index (AQI) calculation. In addition, for indicating conveniently obtained AQI values a web page is also developed to provide an interactive map along with corresponding charts. A case study on an actual LoRa network consisting of three sensing nodes and a gateway were conducted for validating the feasibility of the system.

Index Terms—Air quality monitoring, EnMoS, internet of things, LoRa technology.

Tuyen Phong Truong, Duy Thanh Nguyen, and Phong Vu Truong are with the Department of Electronics and Telecommunication Engineering, College of Engineering Technology, Can Tho University, Can Tho, 900000, Vietnam (e-mail: tptuyen@ctu.edu.vn, duyb1609696@student.ctu.edu.vn, phongb1609733@student.ctu.edu.vn).

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Cite: Tuyen Phong Truong, Duy Thanh Nguyen, and Phong Vu Truong, "Design and Deployment of an IoT-Based Air Quality Monitoring System," International Journal of Environmental Science and Development vol. 12, no. 5, pp. 139-145, 2021.

Copyright © 2021 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).