Issue 10 Volume 41 May 16, 2003

20030037155 Environmental Protection Agency, Ann Arbor, MI, Minnesota Univ., Minneapolis. Particle Technology Lab
CRC E-43 Final QA Audit (Addendum to Final QA Report)
Cantrell, B.; Ayala, A.; Olson, B.; Oct. 2002; In English
Report No.(s): PB2003-102769; No Copyright; Avail: National Technical Information Service (NTIS)
During the final QA audit for Project E-43, the QA team conducted an in-depth survey of the project database. In addition
to critiquing the QA protocols used for data acceptance, reduction, and incorporation into the database, an assessment of
project results is also provided. The latter includes validation of results produced in this study and verification that these results
are usable in meeting project objectives and goals. In the following audit report, deficiencies noted during the audit are flagged
by enclosing them in a text box. The audit revealed that some of the aerosol number concentration and size distribution data
accepted as valid for inclusion in the database, and the results of analysis of that data, as reported, should be considered as
qualitatively valid.
NTIS
Quality Control; Aerosols
20030037156 Statewide Air Pollution Research Center, Riverside, CA
Chemical Analysis of Diesel Nanoparticles Using a Nano-DMA/Thermal Desorption Particle Beam Mass Spectrometer.
Final Report for Phase 1
Zuenann, P. J.; Oct. 17, 2000; 44 pp.; In English
Report No.(s): PB2003-102766; No Copyright; Avail: CASI; A03, Hardcopy
The primary objective of Phase 1 was to evaluate the use the Nano-DMA/TDPBMS to obtain information on the chemical
composition of diesel nanoparticles formed under various engine operating conditions. The studies were carried out at
UMNCDR. The focus was on the chemistry of nucleationmode particles, but larger particles were also analyzed for
comparison. The goal was to use the composition data in conjunction with measured particle physical properties (e.g., size,
concentration, etc.) to develop an understanding of the chemical mechanisms by which nanoparticles are formed in diesel
exhaust. Such knowledge could aid in determining modifications in engine design, operation, fuel, lubricating oil, or
after-treatment that might be made in order to ameliorate the problem of nanoparticle formation.
NTIS
Chemical Analysis; Exhaust Emission; Mass Spectrometers; Engine Design; Exhaust Gases
20030037160 West Virginia Univ., Morgantown, Desert Research Inst., Reno, NV, Old Dominion Univ., Norfolk, VA
Diesel Particulate Sampling Methodology (Langley Wind Tunnel Research)
Clark, N. N.; Gautam, M.; Lyons, D. W.; Ayala, A.; 2002; In English
Report No.(s): PB2003-102765; CRC-E-43-WVU; No Copyright; Avail: National Technical Information Service (NTIS)
Concern over health effects associated with diesel exhaust and debate over the influence of high number counts of
particles in diesel exhaust prompted a study (E-43) of methodology for diesel particulate matter (PM) characterization. As part
of this program, a tractor truck with an electronically managed diesel engine was installed on a dynamometer in the Old
Dominion University (ODU) Langley full-scale wind tunnel. This arrangement permitted repeat measurements of diesel
exhaust under realistic and reproducible conditions and permitted examination of the steady exhaust plume at multiple points.
Background particle size distribution was characterized using a Scanning Mobility Particle Sizer (SMPS). In addition, a
remote sampling system consisting of a SMPS, PM filter arrangement, and carbon dioxide (CO2) analyzer was attached to a
roving gantry that allowed for exhaust plume sampling in a three dimensional grid. Raw exhaust CO2 levels were also
measured in the vehicles exhaust stack. The plume centerline was mapped and dilution ratios were determined and mapped.
NTIS
Particulates; Wind Tunnel Tests; Diesel Fuels; Exhaust Emission; Trucks; Air Pollution; Pollution Monitoring; Air Sampling
20030037162 Environmental Protection Agency, Research Triangle Park, NC
Control of Mercury Emissions from Coal-Fired Electric Utility Boilers: Interim Report including Errata dated
03-21-2002
Kilgroe, J. D.; Sedman, C. B.; Srivastava, R. K.; Ryan, J. V.; Lee, C. W.; Apr. 2002; 46 pp.; In English
Report No.(s): PB2003-102793; EPA/600/R-01/109; No Copyright; Avail: CASI; A03, Hardcopy
In December 2000, the U.S. Environmental Protection Agency (USEPA) announced its intent to regulate mercury
emissions from coal-fired electric utility steam generating plants. This report, produced by EPA’s Office of Research and
Development (ORD), National Risk Management Research Laboratory (NRMRL), provides additional information on
128