An Online Platform For Real-Time Air Quality Monitoring

Silva, Jorge; Lucas, Pedro; Araújo, Filipe; Silva, Catarina; Gil, Paulo; Cardoso, Alberto; Arrais, Joel P.; Ribeiro, Bernardete; Coutinho, Daniel; Salgueiro, Pedro; Rato, Luís; Saias, José; Nogueira, Vítor

doi:10.1109/expat.2019.8876486

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…In addition, the devices send the concentration data to a cloud platform developed by the University of Coimbra and the University of Evora within the framework of the European NanoSen-AQM project [ 20 , 21 ]. This platform was developed so that users can have access to the collected data and accurate information on the quality of the air around them.…”

Section: Methodsmentioning

confidence: 99%

A Novel Bike-Mounted Sensing Device with Cloud Connectivity for Dynamic Air-Quality Monitoring by Urban Cyclists

Gómez-Suárez

Arroyo

Alfonso³

et al. 2022

Sensors

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We present a device based on low-cost electrochemical and optical sensors, designed to be attached to bicycle handlebars, with the aim of monitoring the air quality in urban environments. The system has three electrochemical sensors for measuring NO2 and O3 and an optical particle-matter (PM) sensor for PM2.5 and PM10 concentrations. The electronic instrumentation was home-developed for this application. To ensure a constant air flow, the input fan of the particle sensor is used as an air supply pump to the rest of the sensors. Eight identical devices were built; two were collocated in parallel with a reference urban-air-quality-monitoring station and calibrated using a neural network (R2 > 0.83). Several bicycle routes were carried out throughout the city of Badajoz (Spain) to allow the device to be tested in real field conditions. An air-quality index was calculated to facilitate the user’s understanding. The results show that this index provides data on the spatiotemporal variability of pollutants between the central and peripheral areas, including changes between weekdays and weekends and between different times of the day, thus providing valuable information for citizens through a dedicated cloud-based data platform.

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Section: Methodsmentioning

confidence: 99%

A Novel Bike-Mounted Sensing Device with Cloud Connectivity for Dynamic Air-Quality Monitoring by Urban Cyclists

Gómez-Suárez

Arroyo

Alfonso³

et al. 2022

Sensors

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“…The server is a platform developed within the framework of the NanoSen-AQM project by the University of Coimbra and the University of Evora [ 39 , 40 ]. This platform allows the user to have public access to air quality data via a web browser or mobile application [ 41 , 42 ].…”

Section: Methodsmentioning

confidence: 99%

Low-Cost Air Quality Measurement System Based on Electrochemical and PM Sensors with Cloud Connection

Arroyo

Gómez-Suárez

Suárez

et al. 2021

Sensors

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This paper presents a portable device for outdoor air quality measurement that provides concentration values for the main pollutants: NO2, NO, CO, O3, PM2.5 and PM10, and other values such as temperature, humidity, location, and date. The device is based on the use of commercial electrochemical gas and optical particle matter sensors with a careful design of the electronics for reducing the electrical noise and increasing the accuracy of the measurements. The result is a low-cost system with IoT technology that connects to the Internet through a GSM module and sends all real-time data to a cloud platform with storage and computational potential. Two identical devices were fabricated and installed on a mobile reference measurement unit and deployed in Badajoz, Spain. The results of a two-month field campaign are presented and published. Data obtained from these measurements were calibrated using linear regression and neural network techniques. Good performance has been achieved for both gaseous pollutants (with a Pearson correlation coefficient of up to 0.97) and PM sensors.

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“…Previous system research has focused on improving coverage of specific parts of the monitoring infrastructure. Mainly on the performance of low-cost sensors [5], calibration of low-cost sensors [15], providing on-line platform services [16] with downloadable Apps, and development of indoor air quality supervision systems [17]. In contrast, MegaSense provides opportunities to improve both policy making and the engagement of citizens.…”

Section: Introductionmentioning

confidence: 99%

MegaSense: Cyber-Physical System for Real-time Urban Air Quality Monitoring

Rebeiro‐Hargrave

Motlagh

Varjonen

et al. 2020

2020 15th IEEE Conference on Industrial Electronics and Applications (ICIEA)

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Air pollution is a contributor to approximately one in every nine deaths annually. To counteract health issues resulting from air pollution, air quality monitoring is being carried out extensively in urban environments. Currently, however, city air quality monitoring stations are expensive to maintain, resulting in sparse coverage. In this paper, we introduce the design and development of the MegaSense Cyber-Physical System (CPS) for spatially distributed IoT-based monitoring of urban air quality. MegaSense is able to produce aggregated, privacyaware maps and history graphs of collected pollution data. It provides a feedback loop in the form of personal outdoor and indoor air pollution exposure information, allowing citizens to take measures to avoid future exposure. We present a batterypowered, portable low-cost air quality sensor design for sampling PM2.5 and air pollutant gases in different micro-environments. We validate the approach with a use case in Helsinki, deploying MegaSense with citizens carrying low-maintenance portable sensors, and using smart phone exposure apps. We demonstrate daily air pollution exposure profiles and the air pollution hotspot profile of a district. Our contributions have applications in policy intervention management mechanisms and design of clean air routing and healthier navigation applications to reduce pollution exposure.

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An Online Platform For Real-Time Air Quality Monitoring

Cited by 5 publications

References 3 publications

A Novel Bike-Mounted Sensing Device with Cloud Connectivity for Dynamic Air-Quality Monitoring by Urban Cyclists

A Novel Bike-Mounted Sensing Device with Cloud Connectivity for Dynamic Air-Quality Monitoring by Urban Cyclists

Low-Cost Air Quality Measurement System Based on Electrochemical and PM Sensors with Cloud Connection

MegaSense: Cyber-Physical System for Real-time Urban Air Quality Monitoring

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