Secondary organic aerosol formation from the  oxidation of decamethylcyclopentasiloxane at atmospherically relevant OH concentrations

Charan, Sophia M.; Huang, Yuanlong; Buenconsejo, Reina S.; Li, Qi; Cocker III, David R.; Seinfeld, John H.

doi:https://doi.org/10.5194/acp-22-917-2022

Articles | Volume 22, issue 2

https://doi.org/10.5194/acp-22-917-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-917-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 2

Research article

|

19 Jan 2022

Research article |

| 19 Jan 2022

Secondary organic aerosol formation from the oxidation of decamethylcyclopentasiloxane at atmospherically relevant OH concentrations

Sophia M. Charan, Yuanlong Huang, Reina S. Buenconsejo, Qi Li, David R. Cocker III, and John H. Seinfeld

Supplement

https://doi.org/10.5194/acp-22-917-2022-supplement

Data sets

Experiment Set: D5 Chamber Experiments S. M. Charan https://icarus.ucdavis.edu/experimentset/220

Experiment Set: D5 CPOT Experiments S. M. Charan and Y. Huang https://icarus.ucdavis.edu/experimentset/221

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Short summary

In this study, we investigate the secondary organic aerosol formation potential of decamethylcyclopentasiloxane (D5), which is used as a tracer for volatile chemical products and measured in high concentrations both outdoors and indoors. By performing experiments in different types of reactors, we find that D5’s aerosol formation is highly dependent on OH, and, at low OH concentrations or exposures, D5 forms little aerosol. We also reconcile results from other studies.