Interactive comment on “Secondary Organic Aerosol from Atmospheric Photooxidation of Indole” by Julia Montoya et al
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چکیده
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 aerosol in South Coast Air Basin of California (SoCAB) area. The estimated indole-SOA mass loading in SoCAB was low. Nevertheless, due to its high MAC values and SOA yield, indole-SOA has potential to degrade visibility during springtime flowering events in areas with less black carbon influence. The topic of this study fits within the scope of the Atmospheric Chemistry and Physics journal. Also, the SOA formation indole photooxidation as demonstrated by this study can improve SOA model and reduce the gap between model and measurement. C1
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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
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 i...
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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