Articles | Volume 19, issue 12
https://doi.org/10.5194/amt-19-4035-2026
https://doi.org/10.5194/amt-19-4035-2026
Research article
 | 
22 Jun 2026
Research article |  | 22 Jun 2026

Sodium thiosulfate-coated ceramic denuders for ozone removal in ultrafine particle sampling

Elisabeth Eckenberger, Andreas Mittereder, Nadine Gawlitta, Martin Sklorz, Dieter Brüggemann, Ralf Zimmermann, and Anke Christine Nölscher

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Cited articles

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Short summary
Ozone in sampling air can alter the chemical composition of collected ultrafine particles, leading to an inaccurate air quality assessment. We addressed this by developing a ceramic device coated with sodium thiosulfate that eliminates ozone before it reaches the filter. Our results show this tool effectively preserves ozone-sensitive components, such as polycyclic aromatic hydrocarbons, without particle losses. This contributes to more reliable data for air quality research.
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