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14 January 2025

15 Pages

Design and Implementation of an Indoor and Outdoor Air Quality Measurement Device for the Detection and Monitoring of Gases with Hazardous Health Effects †

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1
Mechatronics Engineering Program, Faculty of Engineering, Universidad Autónoma del Caribe, Barranquilla 080020, Colombia
2
GIIM Group, Mechatronics Engineering, Universidad Autónoma del Caribe, Barranquilla 080020, Colombia
*
Author to whom correspondence should be addressed.
†
Presented at the III International Congress on Technology and Innovation in Engineering and Computing, Lima, Peru, 20–24 November 2023.
Eng. Proc.2025, 83(1), 13;https://doi.org/10.3390/engproc2025083013
This article belongs to the Proceedings of The III International Congress on Technology and Innovation in Engineering and Computing
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Abstract

This paper presents a detailed step-by-step design and construction of an indoor and outdoor air quality monitoring device, composed of electronic sensors capable of measuring gases such as Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Ozone (O3), in addition to measuring temperature and humidity, as well as concentrations of PM2.5 and PM10 particulate matter suspended in the environment. The device features the ESP32 microprocessor board that integrates IoT wireless connectivity via Wi-Fi, which allows for longer processing time and wireless communication. To evaluate the accuracy of the Q-air device, measurements were taken at strategic sites in the city of Barranquilla, which were compared with data from stationary monitoring stations in the city, the results obtained by Q-Air showed a margin of error less than 1.6%, demonstrating accuracy and efficiency.

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