Articles | Volume 21, issue 24
Atmos. Chem. Phys., 21, 18283–18302, 2021
https://doi.org/10.5194/acp-21-18283-2021
Atmos. Chem. Phys., 21, 18283–18302, 2021
https://doi.org/10.5194/acp-21-18283-2021
Research article
17 Dec 2021
Research article | 17 Dec 2021

Evolution of volatility and composition in sesquiterpene-mixed and α-pinene secondary organic aerosol particles during isothermal evaporation

Zijun Li et al.

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Short summary
We compared the evolution of two types of secondary organic aerosol (SOA) particles during isothermal evaporation. The sesquiterpene SOA particles demonstrated higher resilience to evaporation than α-pinene SOA particles generated under comparable conditions. In-depth analysis showed that under high-relative-humidity conditions, particulate water drove the evolution of particulate constituents by reducing the particle viscosity and initiating chemical aqueous-phase processes.
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