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Cited by 400

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Absorptivity of brown carbon in fresh and photo-chemically aged biomass-burning emissions

Open access
Saleh, R., Hennigan, C. J., McMeeking, G. R., Chuang, W. K., Robinson, E. S., Coe, H., Donahue, N. M., Robinson, A. L.·2013·Atmospheric Chemistry and Physics

Abstract

Abstract. Experiments were conducted to investigate light absorption of organic aerosol (OA) in fresh and photo-chemically aged biomass-burning emissions. The experiments considered residential hardwood fuel (oak) and fuels commonly consumed in wild-land and prescribed fires in the United States (pocosin pine and gallberry). Photo-chemical aging was performed in an environmental chamber. We constrained the effective light-absorption properties of the OA using conservative limiting assumptions, and found that both primary organic aerosol (POA) in the fresh emissions and secondary organic aerosol (SOA) produced by photo-chemical aging contain brown carbon, and absorb light to a significant extent. This work presents the first direct evidence that SOA produced in aged biomass-burning emissions is absorptive. For the investigated fuels, SOA is less absorptive than POA in the long visible, but exhibits stronger wavelength-dependence and is more absorptive in the short visible and near-UV. Light absorption by SOA in biomass-burning emissions might be an important contributor to the global radiative forcing budget.

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Metadata

Authors
Saleh, R., Hennigan, C. J., McMeeking, G. R., Chuang, W. K., Robinson, E. S., Coe, H., Donahue, N. M., & Robinson, A. L.
Venue
Atmospheric Chemistry and Physics
Published
2013-08-09
Volume
13
Issue
15
Pages
7683-7693
ISSN
  • 1680-7316 (ISSN-L)
  • 1680-7324
OpenAlex
W2142380122
Cited by
400
References
2
FWCI
11.47
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Absorptivity of brown carbon in fresh and photo-chemically aged biomass-burning emissions. https://app.cochat.ai/papers/10.5194/acp-13-7683-2013
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Saleh, R., Hennigan, C. J., McMeeking, G. R., Chuang, W. K., Robinson, E. S., Coe, H., Donahue, N. M., & Robinson, A. L. (2013). Absorptivity of brown carbon in fresh and photo-chemically aged biomass-burning emissions. Atmospheric Chemistry and Physics. https://doi.org/10.5194/acp-13-7683-2013

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