Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/amt-19-3111-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-3111-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Research article
 | 
12 May 2026
Research article |  | 12 May 2026

A low-maintenance optoacoustic sensor for black carbon monitoring

Linda Haedrich, Nikolaos Kousias, Ioannis Raptis, Uli Stahl, Leonidas Ntziachristos, and Vasilis Ntziachristos

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Short summary
Black carbon or 'soot', generated by combustion, harms climate and health. Traditional filter-based sensors are prone to artefacts and need frequent human intervention. Our optoacoustic illumination-detection separating sensor (IDSS) is filterless and requires minimal cleaning. Flows of clean air shield the sensor's cavity, preventing contamination. We demonstrate the stable performance of the IDSS and estimate a cleaning cycle of 1.5 years in ship-board applications.
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