A New Black Carbon Sensor for Dense Air Quality Monitoring Networks

Sensors
Julien J CaubelThomas W Kirchstetter

Abstract

Low-cost air pollution sensors are emerging and increasingly being deployed in densely distributed wireless networks that provide more spatial resolution than is typical in traditional monitoring of ambient air quality. However, a low-cost option to measure black carbon (BC)-a major component of particulate matter pollution associated with adverse human health risks-is missing. This paper presents a new BC sensor designed to fill this gap, the Aerosol Black Carbon Detector (ABCD), which incorporates a compact weatherproof enclosure, solar-powered rechargeable battery, and cellular communication to enable long-term, remote operation. This paper also demonstrates a data processing methodology that reduces the ABCD's sensitivity to ambient temperature fluctuations, and therefore improves measurement performance in unconditioned operating environments (e.g., outdoors). A fleet of over 100 ABCDs was operated outdoors in collocation with a commercial BC instrument (Magee Scientific, Model AE33) housed inside a regulatory air quality monitoring station. The measurement performance of the 105 ABCDs is comparable to the AE33. The fleet-average precision and accuracy, expressed in terms of mean absolute percentage error, are 9.2 ± 0.8% (...Continue Reading

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Citations

Jul 18, 2019·International Journal of Environmental Research and Public Health·Rebecca TanzerAlbert A Presto
Jan 13, 2021·International Journal of Environmental Research and Public Health·Ana Sofia FonsecaJoonas Koivisto
Mar 7, 2021·Sensors·Antonios StylogiannisVasilis Ntziachristos
Jun 12, 2020·Environmental Science & Technology·Sarah E ChamblissJoshua S Apte
Jun 28, 2019·Environmental Science & Technology·Julien J CaubelThomas W Kirchstetter
Sep 11, 2021·Environmental Science & Technology·Sofia D Hamilton, Robert A Harley

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