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2014
Research communities, engagement campaigns, and administrative agents are increasingly valuing low-cost air-quality monitoring technologies, despite data quality concerns. Mobile low-cost sensors have already been used for delivering a spatial representation of pollutant concentrations, though less attention is given to their uncertainty quantification. Here, we perform static/on-bike inter-comparison tests to assess the performance of the Snifferbike sensor kit in measuring outdoor PM2.5 (Particulate Matter < 2.5 μm). We build a network of citizen-operated Snifferbike sensors in Kristiansand, Norway, and calibrate the measurements using Machine Learning techniques to estimate the concentrations of PM2.5 along the city roads. We also propose a method to estimate the minimum number of PM2.5 measurements required per road segment to assure data representativeness. The co-location of three Snifferbike kits (Sensirion SPS30) at the monitoring station showed a RMSD of 7.55 μg m−3. We approximate that one km h−1 increase in the speed of the bikes will add 0.03 - 0.04 μg m−3 to the Standard Deviation of the Snifferbike PM2.5 measurements. We estimate that at least 27 measurements per road segment are required (50 m here) if the data are sufficiently dispersed over time. We recommend calibrating the mobile sensors when they coincide with reference monitoring stations.
Elsevier
2023
Citizen science and its role in sustainable development: status, trends, issues, and opportunities. Advances in knowledge acquisition, transfer, and management
2017
2017
Citizen participation approaches in environmental health. Molecular and integrative toxicology
2016
2020
CITI-SENSE. Final report on methodology. Deliverable 6.4, Work Package 6. NILU report
Dette dokumentet er en teknisk beskrivelse av CITI-SENSE sine hovedprodukter som er beskrevet i CITI-SENSE portefølje av produkter. Disse produktene ble utviklet, endret eller videreutviklet i dette prosjektet for å innfri og opprettholde den totale kjeden «sensor-plattform-produkter-bruker» med hovedfokus på grensesnittet og koblingen mellom produktene og sluttbrukerne.
Produktene er beskrevet fra en systemutviklers ståsted og inneholder informasjon om eksempelstudier og deres krav, teknisk beskrivelse av arkitektur, kodestrukturer og database og lagringsplattformer. Informasjon om gjeldende status per 30. juni 2016 med forslag til forbedringer og erfaringer i prosjektprosessen, er inkludert for hvert produkt.
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