Articles | Volume 15, issue 11
Atmos. Chem. Phys., 15, 6087–6100, 2015
https://doi.org/10.5194/acp-15-6087-2015
Atmos. Chem. Phys., 15, 6087–6100, 2015
https://doi.org/10.5194/acp-15-6087-2015

Research article 04 Jun 2015

Research article | 04 Jun 2015

Photochemical processing of aqueous atmospheric brown carbon

R. Zhao et al.

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Short summary
Aqueous-phase photochemical decay of light absorbing organic compounds, or atmospheric brown carbon (BrC), is investigated in this study. The absorptive change of laboratory surrogates of BrC, as well as biofuel combustion samples, were monitored during photolysis and OH oxidation experiments. The major finding is the rapid change in the absorptivity of BrC during such photochemical processing. This change should be taken into account to evaluate the importance of BrC in the atmosphere.
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