HR: 0800h
AN: A31C-0067 [Abstracts]
TI: Time Resolved Chemical Analysis of Anthropogenic Aerosols in Norway, a Study of Long-Range
Transport
AU: * Indresand, H
EM: hindresand@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AU: Waddell, J A
EM: jawaddell@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AU: Cliff, S S
EM: sscliff@ucdavis.edu
AF: University of California, Davis, Department of Applied Science, Davis, CA 95616
United States
AU: Perry, K D
EM: perry@met.utah.edu
AF: University of Utah, Department of Meteorology, Salt Lake City, UT 84112-0110
United States
AU: Yttri, K
EM: karl.espen.yttri@nilu.no
AF: NILU Norwegian Institute for Air Research, Instituttveien 18, Kjeller, 2027
Norway
AU: Dye, C
EM: christian.dye@nilu.no
AF: NILU Norwegian Institute for Air Research, Instituttveien 18, Kjeller, 2027
Norway
AU: Kelly, P B
EM: pbkelly@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AB:
Anthropogenic fine particulate matter produced by the burning of carbonaceous fuels is a complex issue that transcends
political and geographical boundaries. Anthropogenic fine aerosols are tranported to Norway from the British Isles and
continental Europe. Two 3-DRUM impactor samplers were used to collect size-separated PM2.5 aerosol samples (2.5 - 1.15,
1.15-0.34, 0.34-0.1 æm Da) at two sites, Birkenes and Kjeller for a six-week period in June and July. The samples were
analyzed with three-hour time resolution by Synchrotron X-ray Fluorescence and Time-of-Flight Mass Spectrometry. S-XRF
determined three-hour mass averages for elements heavier than Na, while the TOFMS was used for chemical speciation as a
function of time and size. Positive ion spectra showed K+, Na+ and organic molecular ions between 200 - 400 m/z. Negative ion
spectra detected carbon clusters, Cl-, Br-, I-, NO2-, NO3-, CN-, CNO-, SO3-, HSO4-, methyl sulfonic acid (MSA), and various
organic acid salts. The chemical signature of the sources are identified using high time resolution in combination with air
mass back trajectories. Chemical modification of the aerosol during transport is examined as a function of particle size.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting