IoT-based mobile app for real-time monitoring and reporting of air pollution

Canales-Calero A.J.; Solis-Rosales S.S.; Carrera-Salas E.A. · Engineering Research Express (2025) · DOI: 10.1088/2631-8695/add83d

Resumen

Air pollution in Lima, exacerbated by transportation and industrial growth, constitutes a significant risk to public health and the environment. According to the 2022 World Air Quality Report (IQAir), Peru is the most polluted country in Latin America, with alarming levels in several districts of the capital, such as San Juan de Lurigancho. The present work develops a mobile application that provides real-time data on air quality in Lima, using IoT sensors. The app displays the air quality index, allows users to report polluting activities, and provides pollution information, showing alerts when the index reaches health risk levels. The sensors were calibrated and validated through co-location tests with official stations to ensure their accuracy. The tests were carried out in three districts of Lima. In SMP and SJL, PM2.5 measurements were evaluated for several days, obtaining averages of 21.68 and 22.17 μg m−3 respectively. In Comas, specific measurements were made in a single day with variations in temperature and humidity, obtaining an average of 20.17 μg m−3. The results were compared with IQAir data of 22.27, 22.13 and 20.20 μg m−3 respectively, demonstrating the reliability of the model. In addition, a Pearson correlation of 0.968, 0.991 and 0.996 is obtained. In conclusion, the app has proven to be an effective tool for air quality monitoring in Lima.

Instituciones: Universidad Peruana de Ciencias Aplicadas