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LABORATORY AND FIELD EVALUATION OF INSTRUMENTATION FOR THE SEMI-CONTINUOUS DETERMINATION OF WATER-SOLUBLE PARTICULATE COMPONENTS AND GASES
Citation:
LONG, R. W. LABORATORY AND FIELD EVALUATION OF INSTRUMENTATION FOR THE SEMI-CONTINUOUS DETERMINATION OF WATER-SOLUBLE PARTICULATE COMPONENTS AND GASES. Presented at University of South Florida, Tampa, FL, May 18, 2005.
Impact/Purpose:
1. Provide the Agency with semi-continuous and real-time instrumentation for its monitoring of ozone, ozone precursors, and reaction products of ozone formation.
2. Provide the Agency with semi-continuous and real-time instrumentation for its monitoring of water-soluble PM components and water-soluble atmospheric gases.
Description:
Studies conducted at the EPA facility in Research Triangle Park, NC and at a field study in Southern California have demonstrated the capability for the semi-continuous determination of water-soluble particulate components and gases. First, two instruments, a R&P 8400N particulate nitrate monitor and an ion chromatography (IC)-based prototype monitor developed at Texas Tech University (TTU), were evaluated both in the laboratory using simulated ambient aerosols and in the field (Rubidoux, CA) during a three week joint ambient comparison study with Brigham Young University (BYU) and the South Coast Air Quality Monitoring District (SCAQMD). During both the laboratory and field studies, both instruments were responsive to changes in the simulated aerosol concentration. However, potential problems were discovered involving both instruments. Second, a newly commercialized IC-based instrument for the determination of water-soluble particulate components and gases was extensively evaluated in a laboratory setting using simulated and indoor aerosols and gases. Results from the laboratory evaluations and field study will be addressed.