Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 18
Articles | Volume 18, issue 18
https://doi.org/10.5194/amt-18-4871-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/amt-18-4871-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 18
Research article
 | 
29 Sep 2025
Research article |  | 29 Sep 2025

A 30-month field evaluation of low-cost CO2 sensors using a reference instrument

Qixiang Cai, Ning Zeng, Xiaoyu Yang, Chi Xu, Zhaojun Wang, and Pengfei Han

Viewed

Total article views: 1,152 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,044 84 24 1,152 29 22 36
  • HTML: 1,044
  • PDF: 84
  • XML: 24
  • Total: 1,152
  • Supplement: 29
  • BibTeX: 22
  • EndNote: 36
Views and downloads (calculated since 01 Apr 2025)
Cumulative views and downloads (calculated since 01 Apr 2025)

Viewed (geographical distribution)

Total article views: 1,152 (including HTML, PDF, and XML) Thereof 1,147 with geography defined and 5 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 02 Oct 2025
Download
Short summary
Mid- and low-cost CO2 sensors are attractive in carbon monitoring and atmospheric inversions. They are useful in both fixed stations and mobile monitoring. Yet the performance faces great challenges due to environmental impacts and long-term drifts. Here, we conducted 30 months of co-located observations using such sensors with a reference instrument. After corrections of environmental impacts and drifts, the accuracy reached 1–3 ppm. We recommend standard gas calibration within 3–6 months.
Read more
Share
Special issue
Greenhouse gas monitoring in the Asia–Pacific region...