Articles | Volume 23, issue 4
Research article
23 Feb 2023
Research article |  | 23 Feb 2023

Microphysics of liquid water in sub-10 nm ultrafine aerosol particles

Xiaohan Li and Ian C. Bourg

Related subject area

Subject: Aerosols | Research Activity: Laboratory Studies | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

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Short summary
Aerosol particles with sizes smaller than 50 nm impact cloud formation and precipitation. Representation of this effect is hindered by limited understanding of the properties of liquid water in these particles. Our simulations of aerosol particles containing salt or organic compounds reveal that water enters a less cohesive phase at droplet sizes below 4 nm. This effect causes important deviations from theoretical predictions of aerosol properties, including phase state and hygroscopic growth.
Final-revised paper