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Título: | Increasing Isoprene Epoxydiol-to-Inorganic Sulfate Aerosol Ratio Results in Extensive Conversion of Inorganic Sulfate to Organosulfur Forms: Implications for Aerosol Physicochemical Properties |
Autor: | Riva, Matthieu Chen, Yuzhi Zhang, Yue Lei, Ziying Olson, Nicole E. Boyer, Hallie C. Narayan, Shweta Yee, Lindsay D. Green, Hilary S. Cui, Tianqu Zhang, Zhenfa Baumann, Karsten Fort, Mike Edgerton, Eric S. Budisulistiorini, Sri Hapsari Rose, Caitlin A. Ribeiro, Igor Oliveira Oliveira, Rafael L. dos Santos, Erickson O. Machado, Cristine M.D. Szopa, Sophie Zhao, Yue Alves, Eliane Gomes Sá, Suzane S. de Hu, Weiwei Knipping, Eladio M. Shaw, Stephanie L. Duvoisin Júnior, Sérgio Souza, Rodrigo Augusto Ferreira de Palm, Brett B. Ji?enez, José Luis Glasius, Marianne Goldstein, Allen H. Pye, Havala O.T. Gold, Avram R. Turpin, Barbara Vizuete, William Martin, Scot T. Thornton, Joel A. Dutcher, Cari S. Ault, Andrew P. Surratt, Jason D. |
Palavras-chave: | Aerosols Air Quality Isoprene Sulfur Compounds Aerosol Properties Global Climates Inorganic Sulfate Laboratory Measurements Organic Sulfates Organosulfur Compounds Oxidation Products Secondary Organic Aerosols Physicochemical Properties Isoprene Isoprene Epoxydiol Organosulfur Derivative Sulfate Unclassified Drug 1,3 Butadiene Hemiterpene Isoprene Pentane Sulfate Aerosol Concentration (composition) Isoprene Organic Sulfur Compound Oxidation Physicochemical Property Sulfate Sulfur Dioxide Acidity Air Pollution Air Pollution Control Air Quality Aqueous Solution Chemical Composition Climate Change Concentration Ratio Global Climate Material State Oxidation Particulate Matter Ph Photooxidation Physical Chemistry Radiative Forcing Secondary Organic Aerosol Viscosity Aerosol Atmosphere Tennessee Aerosols Atmosphere Butadienes Hemiterpenes Pentanes Sulfates Tennessee |
Data do documento: | 2019 |
Revista: | Environmental Science and Technology |
É parte de: | Volume 53, Número 15, Pags. 8682-8694 |
Abstract: | Acid-driven multiphase chemistry of isoprene epoxydiols (IEPOX), key isoprene oxidation products, with inorganic sulfate aerosol yields substantial amounts of secondary organic aerosol (SOA) through the formation of organosulfur compounds. The extent and implications of inorganic-to-organic sulfate conversion, however, are unknown. In this article, we demonstrate that extensive consumption of inorganic sulfate occurs, which increases with the IEPOX-to-inorganic sulfate concentration ratio (IEPOX/Sulfinorg), as determined by laboratory measurements. Characterization of the total sulfur aerosol observed at Look Rock, Tennessee, from 2007 to 2016 shows that organosulfur mass fractions will likely continue to increase with ongoing declines in anthropogenic Sulfinorg, consistent with our laboratory findings. We further demonstrate that organosulfur compounds greatly modify critical aerosol properties, such as acidity, morphology, viscosity, and phase state. These new mechanistic insights demonstrate that changes in SO2 emissions, especially in isoprene-dominated environments, will significantly alter biogenic SOA physicochemical properties. Consequently, IEPOX/Sulfinorg will play an important role in understanding the historical climate and determining future impacts of biogenic SOA on the global climate and air quality. © 2019 American Chemical Society. |
DOI: | 10.1021/acs.est.9b01019 |
Aparece nas coleções: | Artigos |
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