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Bull Environ Contam Toxicol

Title:		"Kinetic and mechanistic reactivity. Isoprene impact on ozone levels in an urban area near Tijuca Forest, Rio de Janeiro"
Author(s):		da Silva CM; da Silva LL; Correa SM; Arbilla G;
Address:		"Centro de Tecnologia, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Bloco A, Sala 402A, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, 21949-900, Brazil. Faculdade de Tecnologia, Universidade do Estado do Rio de Janeiro, Rodovia Presidente Dutra, km 298, Resende, RJ, 27537-000, Brazil. Centro de Tecnologia, Instituto de Quimica, Universidade Federal do Rio de Janeiro, Bloco A, Sala 402A, Cidade Universitaria, Ilha do Fundao, Rio de Janeiro, RJ, 21949-900, Brazil. gracielaiq@gmail.com"
Journal Title:		Bull Environ Contam Toxicol
Year:		2016
Volume:		20161013
Issue:		6
Page Number:		781 - 785
DOI:		10.1007/s00128-016-1949-6
ISSN/ISBN:		1432-0800 (Electronic) 0007-4861 (Linking)
Abstract:		"Volatile organic compounds (VOCs) play a central role in atmospheric chemistry. In this work, the kinetic and mechanistic reactivities of VOCs are analyzed, and the contribution of the organic compounds emitted by anthropogenic and natural sources is estimated. VOCs react with hydroxyl radicals and other photochemical oxidants, such as ozone and nitrate radicals, which cause the conversion of NO to NO(2) in various potential reaction paths, including photolysis, to form oxygen atoms, which generate ozone. The kinetic reactivity was evaluated based on the reaction coefficients for hydroxyl radicals with VOCs. The mechanistic reactivity was estimated using a detailed mechanism and the incremental reactivity scale that Carter proposed. Different scenarios were proposed and discussed, and a minimum set of compounds, which may describe the tropospheric reactivity in the studied area, was determined. The role of isoprene was analyzed in terms of its contribution to ozone formation"
Keywords:		Air Pollutants/analysis/*chemistry Butadienes/*chemistry Forests Hemiterpenes/*chemistry Kinetics Nitrates/chemistry Ozone/*analysis Pentanes/*chemistry Volatile Organic Compounds/analysis/*chemistry Isoprene Ozone Reactivity Volatile organic compounds;
Notes:		"Medlineda Silva, Cleyton Martins da Silva, Luane Lima Correa, Sergio Machado Arbilla, Graciela eng 2016/10/16 Bull Environ Contam Toxicol. 2016 Dec; 97(6):781-785. doi: 10.1007/s00128-016-1949-6. Epub 2016 Oct 13"