Towards comprehensive air quality management using low-cost sensors for pollution source apportionmentPOSITIVE MATRIX FACTORIZATIONULTRAFINE PARTICLESSIZE DISTRIBUTIONSBACKGROUND SITEURBANPERFORMANCESuccessful air quality management and control not only requires measurements of air pollution levels. It also requires ...
The spatiotemporal heterogeneity of the air pollutants complicates appropriate monitoring. The collective measures or crowdsensing is a promising approach to achieve a better air pollution assessment because it includes the local concentration of pollutants, as well as the position and mobility of people...
Fine-grained air pollution monitoring is a fundamental step towards curbing pollution levels. This is sought to be achieved by the large-scale deployment of low-cost sensors at high spatio-temporal resolution. Due to the nature of these deployments, in-the-wild and in harsh environments, sens...
Rise of low cost air sensors As environmental data gets more accessible, air sensors improve, and computing power increases, more and more people are feeling empowered to know: “what’s in this air that I’m breathing?” Researchers, citizen scientists, even school children are arming themselve...
However, in order to employ low-cost platforms for air quality management and health studies, it is necessary to ensure their measurement reproducibility and assess any associated uncertainty. For example, it is known that low-cost sensors suffer from chemical interference and are affected by ...
The use of low-cost sensors for monitoring Indoor Air Quality (IAQ) in schools has shown promising results, with the commercialisation of these devices increasing worldwide. This study aims to identify an effective, commercially available low-cost device for IAQ monitoring in schools. Four low-cos...
instantaneous data to urban communities working to minimise air pollution exposure. BlueSky™ Monitors are easy to integrate into existing infrastructure and the proprietary cloud-based platform, TSI Link™ Solutions, provides secure, remot...
Duarte adds: “If you follow these procedures with low-cost sensors you can still acquire good enough data to go back to [environmental] agencies with it, and say, ‘Let’s talk.’” The researchers did find that using the units in a mobile setting — on top of automobiles — means th...
Until recently, the instruments used for air quality assessment were solely of regulatory grade, thus having a high acquisition, deployment, and maintenance cost, as well as being bulky and heavy. Within the last decade, the emerge of low-cost sensors (LCS), which have a considerably lower ...
These sensors typically cost ≤ $50 each and are often integrated into monitors that cost ≤ $300 (Sousan, Koehler, Hallett, & Peters, 2017). Monitors in this price range are accessible to a wide range of practitioners, and low-cost sensors thus have the potential to democratize air ...