Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 21
Articles | Volume 19, issue 21
https://doi.org/10.5194/amt-19-7199-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-7199-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 21
Research article
 | 
11 Nov 2026
Research article |  | 11 Nov 2026

Evaluating low-cost NDIR CO2 sensors for atmospheric observations in rural settings

Olalekan A. M. Popoola, Paolo Cicuta, Rachel H. Georgiou, Lawrence Tom, Ray Freshwater, Kelsey Leet, and Chiara Giorio

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Short summary
Low-cost CO2 sensors are widely used in cities, but their use in rural environments remains limited. This study shows that, after correcting for environmental effects such as temperature and pressure, these sensors can reliably measure CO2 in agricultural landscapes. The corrected sensors closely matched high-quality reference instruments and successfully captured daily and seasonal changes in rural CO2, demonstrating their potential for long-term climate and land-use monitoring.
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