Aerosol formation yields from the reaction of catechol with ozone |
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| Authors: | Cécile Coeur-Tourneur Alexandre Tomas Angélique Guilloteau Françoise Henry Frédéric Ledoux Nicolas Visez Véronique Riffault John C Wenger Yuri Bedjanian |
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| Institution: | 1. Laboratoire de Physico-Chimie de l''Atmosphère, UMR CNRS 8101, Université du Littoral Côte d''Opale, 32 avenue Foch, 62 930 Wimereux, France;2. Département Chimie et Environnement, École des Mines de Douai, 941 rue Charles Bourseul, 59 508 Douai, France;3. Department of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland;4. Institut de Combustion, Aérothermique, Réactivité et Environnement, CNRS, 1C avenue de la Recherche Scientifique, 45 071 Orléans, France;1. Chemistry Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain;2. Oceanic Platform of the Canary Islands (PLOCAN), 35200 Telde, Spain;1. Institute of Chemical Kinetics and Combustion, Institutskaya Str. 3, Novosibirsk, Russia;2. Novosibirsk State University, Pirogova Str. 2, Novosibirsk, Russia;3. Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium;4. Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Faculté des Sciences, Université libre de Bruxelles (ULB), 50 ave. F-D Roosevelt, B-1050 Brussels, Belgium;5. Department of Physics and Astronomy, University of Calgary, 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada;1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;2. School of Environment, Tsinghua University, Beijing 100084, China;3. Chinese Academy of Meteorological Sciences, Beijing 100081, China;1. Alion Science and Technology, P.O. Box 12313, Durham, NC 27709, USA;2. U.S. EPA, RTP, NC 27711, USA;3. Senior Environmental Employee Program, US. ES-EPA, RTP, NC 27711, USA |
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| Abstract: | The formation of secondary organic aerosol from the gas-phase reaction of catechol (1,2-dihydroxybenzene) with ozone has been studied in two smog chambers. Aerosol production was monitored using a scanning mobility particle sizer and loss of the precursor was determined by gas chromatography and infrared spectroscopy, whilst ozone concentrations were measured using a UV photometric analyzer. The overall organic aerosol yield (Y) was determined as the ratio of the suspended aerosol mass corrected for wall losses (Mo) to the total reacted catechol concentrations, assuming a particle density of 1.4 g cm?3. Analysis of the data clearly shows that Y is a strong function of Mo and that secondary organic aerosol formation can be expressed by a one-product gas–particle partitioning absorption model. The aerosol formation is affected by the initial catechol concentration, which leads to aerosol yields ranging from 17% to 86%. The results of this work are compared to similar studies reported in the literature. |
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