Articles | Volume 18, issue 11
Atmos. Chem. Phys., 18, 7781–7798, 2018
https://doi.org/10.5194/acp-18-7781-2018
Atmos. Chem. Phys., 18, 7781–7798, 2018
https://doi.org/10.5194/acp-18-7781-2018

Research article 04 Jun 2018

Research article | 04 Jun 2018

Secondary aerosol formation promotes water uptake by organic-rich wildfire haze particles in equatorial Asia

Jing Chen et al.

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Short summary
We present water uptake properties of haze particles originating from Indonesian peatland fires and further link the water uptake to particle chemical characteristics. Organic-rich wildfire haze particles are highly hygroscopic, governed by sulfate and promoted by secondary organic aerosol formation. Water-soluble organic fraction plays a minor role in determining particle hygroscopicity. This deepens our understanding, and reported results can be further applied into climate models.
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