OLS : Record


Main Title Intercomparison of Optical Remote Sensing Systems for Roadside Measurements of Nitric Oxide.
Author Ripberger, C. T.; Jones, J. W.; Rodgers, M. O.;
CORP Author Georgia Inst. of Tech., Atlanta. School of Earth and Atmospheric Sciences.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 1999
Year Published 1999
Report Number EPA-R-823020; EPA/600/A-99/071;
Stock Number PB2000-100896
Subjects Vehicle air pollution; Exhaust emission measurement; Nitric oxide; Air pollution monitors; Comparative evaluations; Nitrogen oxides; Carbon monoxide; Hydrocarbons; Remote sensing; Automobile exhaust; Emission factors; Loads(Forces); Air pollution sampling; Federal Test Procedure; Data collection; Optical measurement; Automobiles; Motor vehicles; Light duty vehicles
Library   Call Number Additional Info Location Date Modified
NTIS PB2000-100896 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/11/2000
Collation 30p
Abstract The presentation describes results of an intercomparison of three optical remote sensing systems for measurements of nitric oxide emitted from passenger cars and light-duty trucks. The intercomparison included a standards comparison to establish comparability of standards, followed by a determination of a series of unknown mixtures in a dilution tube. The systems were also used to repetitively measure a group of vehicles of various sizes and emissions on a test track to evaluate the convergence of the nitric oxide measurement to the mean emissions of the vehicles as determined by postmeasurement Federal Test Procedure test cycles on the vehicles. The instruments were also used to measure a series of in-use vehicles at a nearby measurement site with comparisons made of the results reported by each instrument on the same vehicle. Results from the intercomparison indicated general agreement between the instruments, although some systematic biases were identified. Results from carbon monoxide and carbon monoxide hydrocarbon intercomparison tests are also discussed.
Supplementary Notes Presented at the CRC On-Road Vehicle Emissions Workshop (8th), San Diego, CA., April 20-22, 1998. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
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NTIS Title Notes Rept. for Mar 97-Jan 99.
Category Codes 68A; 85H
NTIS Prices PC A03/MF A01
Primary Description 600/13
Document Type NT
Control Number 001900500
Cataloging Source NTIS/MT
Origin NTIS
Type CAT