Articles | Volume 26, issue 3
https://doi.org/10.5194/acp-26-2319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-2319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Feb 2026
Research article |
| 13 Feb 2026
| 13 Feb 2026
Temperature–RH dependent viscosity of organic aerosols from 273 to 303 K: implications for global N2O5 uptake
Atta Ullah
Department of Earth and Environmental Sciences, and Earth Environmental System Research Center, Jeonbuk National University, Jeollabuk-do Jeonju-si 54896, Republic of Korea
Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
Mijung Song
CORRESPONDING AUTHOR
Department of Earth and Environmental Sciences, and Earth Environmental System Research Center, Jeonbuk National University, Jeollabuk-do Jeonju-si 54896, Republic of Korea
Department of Environment and Energy, Jeonbuk National University, Jeollabuk-do Jeonju-si 54896, Republic of Korea
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Short summary
We investigated the temperature- and relative-humidity-dependent viscosity of organic aerosols using sucrose-water droplets as a model. The results show that particles remain liquid near the Earth’s surface but become semi-solid or glassy at higher altitudes. These viscosity changes influence chemical reactions such as nitrogen oxide uptake, improving understanding of air quality and climate processes.
We investigated the temperature- and relative-humidity-dependent viscosity of organic aerosols...
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