Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 16
Articles | Volume 18, issue 16
https://doi.org/10.5194/amt-18-4061-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-4061-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 16
Research article
 | Highlight paper
 | 
28 Aug 2025
Research article | Highlight paper |  | 28 Aug 2025

Calibration and performance evaluation of PM2.5 and NO2 air quality sensors for environmental epidemiology

Miriam Chacón-Mateos, Héctor García-Salamero, Bernd Laquai, and Ulrich Vogt

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Low-cost sensors have been increasing used to measure air pollutants in environmental epidemiology. This work investigated the calibration and performance evaluation of PM2.5 and NO2 sensors, and introduced novel methodologies for field sensor validation during deployment. The manuscript is thorough and systematic in data treatment, and could be used a best practice guide for the application of sensors to air pollution and epidemiological studies.
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Short summary
This study evaluates PM2.5 and NO2 sensors for their use in health studies. Sensors were calibrated using data from reference instruments, and regression and machine learning models were evaluated, identifying opportunities and limitations in model transferability in both indoor and outdoor environments and showcasing the importance of integrating metadata such as activity logs and diffusive tubes to improve data validation and interpretation during deployment in the houses of the participants.
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