HR: 08:00h
AN: A11E-01 INVITED     [Abstracts]
TI: Chemical Characteristics of Aerosols in the Troposphere from the NOAA P3
AU: * Murphy, D M
EM: Daniel.M.Murphy@noaa.gov
AF: NOAA, 325 Broadway, Boulder, CO 80305 United States
AU: Hudson, P K
EM: paula-hudson@uiowa.edu
AF: NOAA and University of Iowa, 235 Madison Av, Iowa City, IA 55242 United States
AU: Middlbrook, A M
EM: Ann.M.Middlebrook@noaa.gov
AF: NOAA, 325 Broadway, Boulder, CO 80305 United States
AU: Matthew, B K
EM: bmatthew@al.noaa.gov
AF: NOAA, 325 Broadway, Boulder, CO 80305 United States
AU: Sullivan, A
EM: asullivan@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332 United States
AU: Thomson, D S
EM: David.S.Thomson@noaa.gov
AF: NOAA, 325 Broadway, Boulder, CO 80305 United States
AU: Weber, R J
EM: rweber@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332 United States
AB: The chemical composition of aerosols over the Northeast United States was measured in summer 2004 from the NOAA P 3 using single particle analysis, an aerosol mass spectrometer, and on-line ion chromatography. All three techniques show a large role for organics in free tropospheric aerosols. The organic content was especially high in biomass burning plumes, but the organics were not restricted to that area. Information will be shown on the relative amounts of organics and sulfate as a function of particle size. The single particle data support uptake of nitrate and chlorine by dust and also show a puzzling pattern of widespread trace amounts of Pb in particles.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005