A13E-0383
Gas-Phase OH Oxidation of Cresol to Yield Highly Oxygenated Products
Monday, 14 December 2015
Poster Hall (Moscone South)
Rebecca Schwantes1, Hanna Lignell2, Renee McVay1, Katherine Schilling3, Matthew Mitchell Coggon1, Xuan Zhang1 and John Seinfeld1, (1)California Institute of Technology, Pasadena, CA, United States, (2)Univ California, Irvine, CA, United States, (3)U.S. Army Criminal Investigation Laboratory, Forest Park, GA, United States
Abstract:
Chemical mechanisms of toluene oxidation by OH are not yet fully understood. Products from the OH oxidation of toluene arise from both ring opening and ring retention pathways, the latter of which includes the generation of cresol. The gas-phase primary and subsequent generation OH oxidation products from cresol are explored in laboratory chamber studies using a chemical ionization mass spectrometer. Products from OH oxidation of cresol largely retain the ring structure and are rapidly oxidized due to the increase in OH reactivity with the addition of OH groups. The highly oxidized products that form from cresol OH oxidation have a high likelihood of partitioning to the particle phase and generating secondary organic aerosol.
