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SAR QSAR Environ Res


Title:Ranking of volatile organic compounds for tropospheric degradability by oxidants: a QSPR approach
Author(s):Gramatica P; Pilutti P; Papa E;
Address:"QSAR and Environmental Chemistry Research Unit, Department of Structural and Functional Biology, University of Insubria, via Dunant 3, 21100 Varese, Italy. paola.gramatica@uninsubria.it"
Journal Title:SAR QSAR Environ Res
Year:2002
Volume:13
Issue:7-Aug
Page Number:743 - 753
DOI: 10.1080/1062936021000043472
ISSN/ISBN:1062-936X (Print) 1026-776X (Linking)
Abstract:"The limited availability and variability of data related to atmospheric degradation reaction is a very relevant issue in studies related to environmental fate and behavior of chemicals. For screening purposes, the experimental data of the oxidation rate constants for the reactions with the radicals OH, NO3 and with ozone of 65 heterogeneous organic compounds were explored by Principal Component Analysis: a ranking of volatile organic chemicals (VOC) according to their relative overall atmospheric degradability and an atmospheric persistence index (ATPIN) is proposed. This index has been modeled by theoretical molecular descriptors to obtain MLR models with high predictive power, both internally and externally validated, and the definition of chemical domain applicability. This procedure allows a fast ranking of VOCs according to their tendency to be degraded by atmospheric oxidants, starting only from the knowledge of their molecular structure"
Keywords:"*Air Pollutants Forecasting *Models, Theoretical Organic Chemicals Oxidants/*chemistry Oxidation-Reduction Photochemistry Risk Assessment Volatilization;"
Notes:"MedlineGramatica, P Pilutti, P Papa, E eng England 2003/02/07 SAR QSAR Environ Res. 2002 Dec; 13(7-8):743-53. doi: 10.1080/1062936021000043472"

 
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