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EAST VERSUS WEST IN THE US: CHEMICAL CHARACTERISTICS OF PM 2.5 DURING THE WINTER OF 1998
Citation:
Solomon, P A., W J. Mitchell, D B. Gemmill, M P. Tolocka, J C. Suggs, G A. Norris, R W. Wiener, J. P. Homolya, R. W. Vanderpool, AND S. Natarajan. EAST VERSUS WEST IN THE US: CHEMICAL CHARACTERISTICS OF PM 2.5 DURING THE WINTER OF 1998. Presented at PM 2000 AWMA Conference, Charleston, SC, January 24-28, 2000.
Description:
PM2.5 samples were collected for up to 20 days during January and February of 1998 in four US cities. Samplers were collected for 24-hr sampling periods every other day at Philadelphia, PA, Phoenix, AZ, Rubidoux, CA, and Research Triangle Park, NC. These cities were chosen due to their potentially different chemical characteristics of the ambient aerosol. Chemical characterization included, sulfate, nitrate, and ammonium by ion chromatography, elements by XRF, OC/EC by TOR, and mass by gravimetric analysis. Appropriate filter media were used to allow for chemical analysis by the routine methods to be employed in the National PM2.5 Chemical Speciation Network. Results will be presented of the wintertime chemical characteristics of the four cities studied showing the differences among US regions.
This work has been funded wholly or in part by the United States Environmental Protection Agency. Portions of the work were performed under Contract No. 68-D5-0040 by Research Triangle Institute. It has been subjected to Agency review and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.