HR: 1340h
AN: A33A-0822    [Abstracts]
TI: Nonmethane Hydrocarbon (NMHC) Characterization of Asian Outflow During the INTEX-B Campaign: a Case Study from May 1
AU: * Barletta, B
EM: bbarlett@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Meinardi, S
EM: smeinard@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Atlas, E
EM: eatlas@rsmas.miami.edu
AF: University of Miami, RSMAS/MAC 4600 Rickenbacker Causeway, Miami, FL 33149, United States
AU: Blake, N J
EM: nblake@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Baker, A K
EM: akyoung@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Beyersdorf, A J
EM: abeyersd@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: McKeachie, R
EM: jmckeach@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Midyett, J R
EM: jmidyett@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Novak, B J
EM: bnovak@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Yang, M
EM: myang@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AU: Blake, D R
EM: drblake@uci.edu
AF: University of California Irvine, Rowland Hall Department of Chemistry, Irvine, CA 92697, United States
AB: Whole air samples were collected on board of the NCAR-C130 aircraft during the Intercontinental Chemical Transport Experiment Phase B (INTEX-B). A total of 4299 samples were collected and analyzed for NMHCs, halocarbons, alkylnitrate, and selected sulfur compounds. During INTEX-B, from our measurements we identified air masses containing enhanced levels of NMHCs. On May 1 2006 during Flight 6 of the second part of the campaign two distinct plumes were encountered at high altitude (above 20,000 feet). A total of 71 samples were collected during the flight with 6 canisters filled within the first plume and 7 in the second. To understand the origin of the plumes, the enhancement of selected species was investigated. Many urban tracers (i.e. tetrachloroethene, ethyne, benzene, toluene) had elevated mixing ratios, including the tracers of Asian Outflow such as CH3Cl and Halon-1211.
DE: 0325 Evolution of the atmosphere (1610, 8125)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting