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RECORD NUMBER: 310 OF 3774

OLS Field Name OLS Field Data
Main Title An investigation of remote sensing devices for chemical characterization of motor vehicle exhaust : final report /
Author Jones, Julian W. ; Ripberger, C. T. ; Vescio, N.
Other Authors
Author Title of a Work
Ripberger, C. Ted.
Vescio, Niranjan.
United States.
National Risk Management Research Laboratory.
CORP Author ARCADIS Geraghty and Miller, Inc., Research Triangle Park, NC. ;Remote Sensing Technologies, Inc., Tucson, AZ. ;Hughes Santa Barbara Research Center, CA.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1998
Report Number EPA/600/R-98/170; EPA-68-D4-0005
Stock Number PB99-127987
Subjects Automobiles--Motors--Exhaust gas--Measurement. ; Motor vehicles--Motors--Exhaust gas--Measurement. ; Remote sensing. ; Carbon monoxide.
Additional Subjects Air pollution sampling ; Exhaust emission measurement ; Vehicle air pollution ; Remote sensors ; Mobile pollutant sources ; Chemical analysis ; Exhaust composition ; Exhaust gases ; Hydrocarbons ; Carbon monoxide ; Nitrogen oxides ; Driving system effect on exhaust emissions ; Speed
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1007KC0.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB99-127987 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation xiii, 79 pages : illustrations ; 28 cm
Abstract
The report summarizes results of tests to (1) evaluate the accuracy and precision of two different remote sensing devices (RSDs) for measuring carbon monoxide (CO), hydrocarbons (HCs), and nitric oxide (NO), and (2) evaluating the capabilities of three RSDs for characterizing fleet emissions of NO. 'Puff' tests (in which simulated motor vehicle exhaust gas was repeatedly injected in bursts or puffs into the RSDs) were conducted. The accuracy and precision of data from these measurements, which showed a generally linear response over a range of concentrations, were in the order CO > HCs > NO. Subsequently, three vehicles were driven at constant speed on a dynamometer and on a test track. The average emissions data measured by the three RSDs at the track, when compared to the dynanmometer emissions data (which were used as the standard), in general showed just the opposite result; i.e., NO > HCs > CO. However, the test track data showed a considerable amount of variation. The three RSDs were tested for several hours on a freeway ramp in Raleigh, NC.
Notes
Final report. "December 1998." Includes bibliographical references (pages 34-35). Microfiche.