HR: 0800h
AN: A31B-0847 [Abstracts]
TI: Preliminary analysis of elemental markers of Asian industrial emission detected at Lassen Peak in
northern California
AU: * Harada, Y
EM: yharada@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AU: Lee, S
EM: isle@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AU: Babayco, C B
EM: cbbabayco@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: Kelly, P B
EM: pbkelly@ucdavis.edu
AF: University of California, Davis, Department of Chemistry, Davis, CA 95616
United States
AB:
Effective regional air pollution regulation requires an understanding of long-range aerosol transport and natural aerosol
chemistry. Sample collection was performed at the Interagency Monitoring of Protected Visual Environments (IMPROVE) sampling
site on Lassen Peak in the Sierra Nevada range at 1755 m elevation. The site is in Northern California at Longitude 121°
34' 40", Latitude 40° 32' 25". Size segregated and time resolved aerosol samples were collected with an 8 DRUM sampler
from April 15th to May 24th 2002 as part of the NOAA Intercontinental Transport and Chemical Transformation Experiment
(ITCT). The samples were analyzed with Synchrotron X-Ray Fluorescence (S-XRF) and Time of Flight mass spectroscopy (TOFMS).
This study demonstrated that upslope and downslope wind at the mountain slope can separate the local and long-range transport
aerosol, and the mountain slope is a unique sampling site that can be used to monitor the long-range transport aerosol
contribution. The wind pattern, which exhibited a clear diurnal cycle in both direction and speed, successfully separated
aerosols from above and below the sampling site resulting in the identification of the aerosol source. Zn, Cu, Cr, V, Ni and
K are found to be a set of potential markers from Asian industrial emission.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005