Interactive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
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چکیده
This manuscript describes a laboratory study on the photo-oxidation of indole under low-NOx conditions. Secondary organic aerosols (SOA) were chemically characterize to determine the importance of indole chemistry in the formation of brown carbon (BrC) constituents. State of art analytical techniques (high-resolution mass spectrometers) used is this study, provide novel and important insights into the understanding of the formation of BrC in the atmosphere. In addition, the authors have evaluated the importance of their findings using a regional model and have highlighted that oxidation of indole could have an important role in SOA formation as well as BrC compounds. Since these results help to provide accurate atmospheric chemistry models for the oxidation of BVOC, they are an important contribution to the literature. While the results are interesting and are appropriate for Atmospheric Chemistry and Physics, few clarifications (c.f. comments below) should be provided and would benefit from clarifying
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Interactive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
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Interactive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
The paper reports secondary organic aerosol (SOA) yield, mass absorption coefficient (MAC) values, and light-absorbing compounds in SOA produced from photooxidation of indole. High SOA yield was observed and several compounds (i.e. -heterocyclics) were found to absorb visible light. Additionally, an air quality simulation was used to evaluate the contribution of indole-SOA to total atmospheric ...
متن کاملInteractive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
Indole is emitted from the biosphere by plants under stressed conditions. The SOA yield of Indole was measured in a smog chamber. The particles were collected and the mass absorption coefficient determined at various wavelengths. With nanospray desorption electrospray high resolution mass spectrometry and DART-MS the molecular formula of a series of species in the aerosol phase was identified a...
متن کاملInteractive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
Indole is emitted from the biosphere by plants under stressed conditions. The SOA yield of Indole was measured in a smog chamber. The particles were collected and the mass absorption coefficient determined at various wavelengths. With nanospray desorption electrospray high resolution mass spectrometry and DART-MS the molecular formula of a series of species in the aerosol phase was identified a...
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