Open Access
The rise of low-cost sensing for managing air pollution in cities
Prashant Kumar,Lidia Morawska,Claudio Martani,George Biskos,George Biskos,George Biskos,Marina Neophytou,Silvana Di Sabatino,Margaret Bell,Leslie Norford,Rex Britter +10 more
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In this article, the authors illustrate the drivers behind current rises in the use of low-cost sensors for air pollution management in cities, whilst addressing the major challenges for their effective implementation.Abstract:
Ever growing populations in cities are associated with a major increase in road vehicles and air pollution. The overall high levels of urban air pollution have been shown to be of a significant risk to city dwellers. However, the impacts of very high but temporally and spatially restricted pollution, and thus exposure, are still poorly understood. Conventional approaches to air quality monitoring are based on networks of static and sparse measurement stations. However, these are prohibitively expensive to capture tempo-spatial heterogeneity and identify pollution hotspots, which is required for the development of robust real-time strategies for exposure control. Current progress in developing low-cost micro-scale sensing technology is radically changing the conventional approach to allow real-time information in a capillary form. But the question remains whether there is value in the less accurate data they generate. This article illustrates the drivers behind current rises in the use of low-cost sensors for air pollution management in cities, whilst addressing the major challenges for their effective implementation.read more
Citations
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Applications of low-cost sensing technologies for air quality monitoring and exposure assessment: How far have they gone?
Lidia Morawska,Phong K. Thai,Xiaoting Liu,Akwasi Bonsu Asumadu-Sakyi,Godwin A. Ayoko,Alena Bartonova,Andrea Bedini,Fahe Chai,Bryce Christensen,Matthew Dunbabin,Jian Gao,Gayle S.W. Hagler,Rohan Jayaratne,Prashant Kumar,Alexis K.H. Lau,Peter K.K. Louie,Mandana Mazaheri,Zhi Ning,Nunzio Motta,Ben Mullins,Mahmudur Rahman,Zoran Ristovski,Mahnaz Shafiei,Dian Tjondronegoro,Dane Westerdahl,Ronald Williams +25 more
TL;DR: In this article, the authors conducted a comprehensive literature search including both the scientific and grey literature, and concluded that there is no clear answer to the question, due to a lack of: sensor/monitor manufacturers' quantitative specifications of performance, consensus regarding recommended end-use and associated minimal performance targets of these technologies, and the ability of the prospective users to formulate the requirements for their applications, or conditions of the intended use.
Journal Article
Real-time sensors for indoor air monitoring and challenges ahead in deploying them to urban buildings
Prashant Kumar,Andreas N. Skouloudis,Margaret Bell,Mar Viana,Maria-Cristina Carotta,George Biskos,Lidia Morawska +6 more
TL;DR: Forouzanfar et al. as discussed by the authors provide a review of the new air pollution sensing methods to determine indoor air quality and discuss how real-time sensing could bring a paradigm shift in controlling the concentration of key air pollutants in billions of urban houses worldwide.
Journal ArticleDOI
Establishing A Sustainable Low-Cost Air Quality Monitoring Setup: A Survey of the State-of-the-Art
TL;DR: This article summarizes the existing studies on the state-of-the-art of LCS for AQM, and conceptualizes a step by step procedure to establish a sustainable AQM setup with LCS that can produce reliable data.
Ultrafine particles in cities
Prashant Kumar,Lidia Morawska,Wolfram Birmili,Pauli Paasonen,Min Hu,Markku Kulmala,Roy M. Harrison,Leslie Norford,Rex Britter +8 more
TL;DR: In this paper, the authors reviewed some fundamental drivers of UFP emissions and dispersion, and highlighted unresolved challenges, as well as recommendations to ensure sustainable urban development whilst minimising any possible adverse health impacts.
Predicting vehicular emissions in high spatial resolution using pervasively measured transportation data and microscopic emissions model
Marguerite Nyhan,Stanislav Sobolevsky,Chaogui Kang,Prudence Robinson,Andrea Corti,Michael Szell,David G. Streets,Zifeng Lu,Rex Britter,Steven R. H. Barrett,Carlo Ratti +10 more
TL;DR: In this paper, a taxi fleet of over 15,000 vehicles was analyzed with the aim of predicting air pollution emissions for Singapore, and the results showed that highly localized areas of elevated emissions levels were identified, with a spatio-temporal precision not possible with previously used methods for estimating emissions.
References
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Journal ArticleDOI
Performance of Aether Low-Cost Sensor Device for Air Pollution Measurements in Urban Environments. Accuracy Evaluation Applying the Air Quality Index (AQI)
TL;DR: In this article, a comparison between the findings from a low-cost electrochemical sensor device and those of a static, fixed site measurement monitoring station is made based on the data quality and Air Quality Index (AQI) concerning data accuracy and quality on adverse health effects due to air pollution.
Journal ArticleDOI
Application of Low-Cost Electrochemical Sensors to Aqueous Systems to Allow Automated Determination of NH3 and H2S in Water.
TL;DR: The use of the proposed mathematical model widens the scope of electrochemical gas sensors to include saturated gas streams, for example, from nebulized water samples, and gas streams with variable humidity.
Proceedings ArticleDOI
SATVAM: Toward an IoT Cyber-Infrastructure for Low-Cost Urban Air Quality Monitoring
Yogesh Simmhan,Malati Hegde,Rajesh Zele,Sachchida Nand Tripathi,Srijith Nair,Sumit Kumar Monga,Ravi Sahu,Kuldeep Dixit,Ronak Sutaria,Brijesh Kumar Mishra,Anamika Sharma,Anand Svr +11 more
TL;DR: The authors' analytical models reduce the errors of the sensors from a best-case of 63% using the factory baseline to as low as 21%, and substantially advances the state-of-the-art in this domain.
Journal ArticleDOI
From emissions to source allocation: Synergies and trade-offs between top-down and bottom-up information
TL;DR: In this article, a series of annual air quality model simulations corresponding to different emission reduction scenarios has been performed with a three-dimensional chemical transport modelling chain running at 3 km resolution.
Journal ArticleDOI
Development of a low-cost measuring system for the monitoring of environmental parameters that affect air quality for human health
TL;DR: The proposed system is a prototype in the initial phase, so only the operational capabilities of the system were evaluated, the response of the sensors to step-type inputs and the measurement of background concentrations in urban interior environments.
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