Articles | Volume 19, issue 4
https://doi.org/10.5194/amt-19-1293-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-1293-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Feb 2026
Research article |
| 19 Feb 2026
| 19 Feb 2026
Recalibration of low-cost O3 and PM2.5 sensors: linking practices to recent air sensor test protocols
Paul Gäbel
CORRESPONDING AUTHOR
Regional Climate Change and Health, Faculty of Medicine, University of Augsburg, Universitätsstraße 2, 86159 Augsburg, Germany
Elke Hertig
CORRESPONDING AUTHOR
Regional Climate Change and Health, Faculty of Medicine, University of Augsburg, Universitätsstraße 2, 86159 Augsburg, Germany
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Short summary
Our yearlong study examined the performance of low-cost sensors for monitoring ozone and fine particulate matter. They benefit from regular, in-season adjustments – monthly recalibration proved most effective – to deliver reliable data. Using an uncommon recalibration method and state-of-the-art air sensor test protocols for evaluation, we showed the importance of recurrent calibration to maximize sensor performance and to broaden their scope of application, particularly for ozone monitoring.
Our yearlong study examined the performance of low-cost sensors for monitoring ozone and fine...
