Articles | Volume 16, issue 1
https://doi.org/10.5194/amt-16-169-2023
https://doi.org/10.5194/amt-16-169-2023
Research article
 | 
13 Jan 2023
Research article |  | 13 Jan 2023

Identifying optimal co-location calibration periods for low-cost sensors

Misti Levy Zamora, Colby Buehler, Abhirup Datta, Drew R. Gentner, and Kirsten Koehler

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Latest update: 13 Jun 2024
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Short summary
We assessed five pairs of co-located reference and low-cost sensor data sets (PM2.5, O3, NO2, NO, and CO) to make recommendations for best practices regarding the field calibration of low-cost air quality sensors. We found diminishing improvements for calibration periods longer than about 6 weeks for all sensors and that co-location can be minimized if the period is strategically selected and monitored so that the calibration period is representative of the desired measurement setting.