HR: 15:45h
AN: A53B-08    [Abstracts]
TI: Fogwater Chemistry and Air Quality in the Texas-Louisiana Gulf Coast Corridor
AU: * Kommalapati, R R
EM: rrkommalapati@pvamu.edu
AF: Prairie View A&M University, Department of Civil & Environmental Engineering PO Box 519, Mail Stop 2510, Prairie View, TX 77446, United States
AU: Raja, S
EM: suresh@lamar.colostate.edu
AF: Colorado State University, Department of Atmospheric Sciences, Fort Collins, CO 80523, United States
AU: Ravikrishna, R
EM: rrk@iitm.ac.in
AF: Indian Institute of Technology-Madras, Department of Chemical Engineering, Chennai, TN 600036, India
AU: Murugesan, K
EM: jalkarthik@yahoo.com
AF: Prairie View A&M University, Department of Civil & Environmental Engineering PO Box 519, Mail Stop 2510, Prairie View, TX 77446, United States
AU: Collett, J L
EM: collett@atmos.colostate.edu
AF: Colorado State University, Department of Atmospheric Sciences, Fort Collins, CO 80523, United States
AU: Valsaraj, K
EM: valsaraj@lsu.edu
AF: Louisiana State University, Department of Chemical Engineering, Baton Rouge, LA 70803, United States
AB: The presence of fog water in polluted atmosphere can influence atmospheric chemistry and air quality. The study of interactions between fog water and atmospheric gases and aerosols are very important in understanding the atmospheric fate of the pollutants. In this Study several air samples and fogwater samples were collected in the heavily industrialized area of Gulf Coast corridor( Houston, TX and Baton Rouge, LA). A total of 32 fogwater samples were collected, comprising of nine fog events in Baton Rouge (Nov 2004 to Feb 2005) and two fog events in Houston (Feb, 2006), during the fog sampling campaigns. These samples were analyzed for pH, total and dissolved carbon, major inorganic ions, organic acids, and aromatics, aldehydes, VOCs, and linear alkanes organic compounds. Fogwater samples collected in Houston show clear influence of marine and anthropogenic environment, while Baton Rouge samples reveal a relatively less polluted environment. Also, a time series observation of air samples indicated that fog event at the monitoring site impacted the air concentrations of the pollutants. This is attributed to presence of surface active organic matter in fog water.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0317 Chemical kinetic and photochemical properties
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 3300 ATMOSPHERIC PROCESSES
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly