Time-Resolved Molecular Characterization of Secondary Organic Aerosol Formed from OH and NO₃ Radical Initiated Oxidation of a Mixture of Aromatic Precursors.

ABSTRACT: Aromatic hydrocarbons (ArHCs) and oxygenated aromatic hydrocarbons (ArHC-OHs) are emitted from a variety of anthropogenic activities and are important precursors of secondary organic aerosol (SOA) in urban areas. Here, we analyzed and compared the composition of SOA formed from the oxidation of a mixture of aromatic VOCs by OH and NO₃ radicals. The VOC mixture was composed of toluene (C₇H₈), p-xylene + ethylbenzene (C₈H₁₀), 1,3,5-trimethylbenzene (C₉H₁₂), phenol (C₆H₆O), cresol (C₇H₈O), 2,6-dimethylphenol (C₈H₁₀O), and 2,4,6-trimethylphenol (C₉H₁₂O) in a proportion where the aromatic VOCs were chosen to approximate day-t

SUBMITTER: Kumar V 

PROVIDER: S-EPMC10413940 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature