Articles | Volume 21, issue 19
Atmos. Chem. Phys., 21, 14631–14648, 2021
https://doi.org/10.5194/acp-21-14631-2021
Atmos. Chem. Phys., 21, 14631–14648, 2021
https://doi.org/10.5194/acp-21-14631-2021
Research article
04 Oct 2021
Research article | 04 Oct 2021

The effect of (NH4)2SO4 on the freezing properties of non-mineral dust ice-nucleating substances of atmospheric relevance

Soleil E. Worthy et al.

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Short summary
We studied the effect of (NH4)2SO4 on the immersion freezing of non-mineral dust ice-nucleating substances (INSs) and mineral dusts. (NH4)2SO4 had no effect on the median freezing temperature of 9 of the 10 tested non-mineral dust INSs, slightly decreased that of the other, and increased that of all the mineral dusts. The difference in the response of mineral dust and non-mineral dust INSs to (NH4)2SO4 suggests that they nucleate ice and/or interact with (NH4)2SO4 via different mechanisms.
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