Articles | Volume 15, issue 12
Atmos. Chem. Phys., 15, 6851–6866, 2015
https://doi.org/10.5194/acp-15-6851-2015
Atmos. Chem. Phys., 15, 6851–6866, 2015
https://doi.org/10.5194/acp-15-6851-2015

Research article 23 Jun 2015

Research article | 23 Jun 2015

Heterogeneous reaction of peroxyacetic acid and hydrogen peroxide on ambient aerosol particles under dry and humid conditions: kinetics, mechanism and implications

Q. Q. Wu et al.

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Short summary
The present study provides the first measurement for the uptake coefficient of gaseous peroxide compounds including peroxyacetic acid and hydrogen peroxide on the ambient particles (PM2.5 and Asian Storm Dust) over a wide range of relative humidity. The measured uptake coefficient values suggest that the heterogeneous reaction on the ambient particles plays an important role in the atmospheric budgets of peroxide compounds and potentially affects the components of aerosols in the atmosphere.
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