Title page for ETD etd-07112005-221802


Type of Document Master's Thesis
Author Kice, Sean Jason
Author's Email Address skice2@lsu.edu
URN etd-07112005-221802
Title Identifying Asphalt Construction as a Point Source Emitter of Volatile Organic Compounds near the Louisiana State University Ozone Monitoring Station
Degree Master of Science (M.S.)
Department Environmental Studies
Advisory Committee
Advisor Name Title
Edward B. Overton Committee Chair
Ralph Portier Committee Member
Vincent L. Wilson Committee Member
Keywords
  • ozone
  • gas chromatograph
  • VOCs
  • asphalt
Date of Defense 2005-07-07
Availability unrestricted
Abstract
The EPA has classified Baton Rouge as a non-attainment area for ozone pollution for many years. Since then Photochemical Assessment Monitoring Stations (PAMS) and other ozone monitoring stations around the metropolitan area have monitored for ozone, NOx, and more than 50 volatile organic compounds (VOCs) which are considered precursors to ozone pollution. Traditionally, automobile engines and industrial plants and refineries have been blamed as major point sources for VOC emissions and the ozone pollution they cause. This research focuses on another possible point source for failing ozone levels at one of the ozone monitoring stations located on the campus of Louisiana State University. Gas Chromatograph and Mass Spectrometer analyses of newly poured asphalt surfaces near the monitoring station revealed a silicone “marker” compound that can be used to trace highly reactive VOCs that react almost instantly when exposed to sunlight. This marker and several species of alkenes boil out of new asphalt when heated to construction temperatures and in harsh environmental conditions. Enough of these chemicals are released to perhaps significantly effect the production of ozone in the lower atmosphere.
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