Grantee Research Project Results
1997 Progress Report: The Chemical Kinetics and Mechanisms of Hydrocarbons Contributing to Ozone Production in the Atmosphere
EPA Grant Number: R825258Title: The Chemical Kinetics and Mechanisms of Hydrocarbons Contributing to Ozone Production in the Atmosphere
Investigators: Demerjian, Kenneth L. , Anderson, James G.
Institution: The State University of New York , Harvard University
EPA Project Officer: Hahn, Intaek
Project Period: November 25, 1996 through November 24, 1999
Project Period Covered by this Report: November 25, 1996 through November 24, 1997
Project Amount: $534,939
RFA: Air Quality (1996) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , Air
Objective:
The objective of this research project is to perform laboratory chemical kinetic and mechanistic studies of hydrocarbon oxidation by ozone and hydroxyl radical using high-pressure flow system. Specific studies include: (1) direct measurement of OH formation yields in ozone-olefin reactions; and (2) kinetic rate constant and mechanistic pathway studies of the OH-isoprene and OH- -, -pinene reactions.Progress Summary:
Direct measurement of OH formation using laser-induced fluorescence (LIF) has been demonstrated at low pressure for a series of ozone-olefin reactions. Preliminary product analyses using reaction modulation FTIR spectroscopic technique have been demonstrated for the OH-isoprene reaction.Future Activities:
Studies of the pressure dependence of OH yields from a series of ozone-olefin reactions. Product analysis and mechanistic pathway studies of the OH-isoprene and OH- -, -pinene reactions using FTIR.Journal Articles on this Report : 1 Displayed | Download in RIS Format
| Other project views: | All 17 publications | 8 publications in selected types | All 8 journal articles |
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Donahue NM, Kroll JH, Anderson JG, Demerjian KL. Direct observations of OH production from the ozonolysysis of olefins. Geophysical Research Letters 1998;25(1):59-62. |
R825258 (1997) R825258 (Final) |
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Supplemental Keywords:
natural hydrocarbons, oxidation, reactivity., RFA, Scientific Discipline, Air, tropospheric ozone, Atmospheric Sciences, rate constant determinations, high pressure flow system, fate and transport, ozone occurrence, Reaction Modulation Spectroscopy, spectroscopic studies, ambient air, ozone formation, hydrocarbon oxidation, chemical kinetics, atmosphereRelevant Websites:
http://www-kinetics.harvard.edu
http://www.asrc.cestm.albany.edu
Progress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.