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Main Title Conceptual design issues : developing a new highway vehicle emissions estimation methodology /
Author Ripberger, Carl T. ; Markey, J.
Other Authors
Author Title of a Work
Markey, James.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Air and Energy Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1991
Report Number EPA/600/A-92/008; AEERL-P-868
Stock Number PB92-139450
Subjects Automobiles--Motors--Exhaust gas--Measurement ; Motor vehicles--Motors--Exhaust gas--Measurement ; Carbon monoxide
Additional Subjects Exhaust emissions ; Air pollution control ; Motor vehicles ; Air pollution abatement ; Highways ; Study estimates ; Concentration(Composition) ; Mobile pollutant sources ; Fuels ; Inspection ; Air pollution standards ; Hydrocarbons ; Carbon monoxide ; Ozone
Library Call Number Additional Info Location Last
NTIS  PB92-139450 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9 pages ; 28 cm
The paper reports on EPA's effort to define the design of an ideal methodology for estimating emissions from highway vehicles. The design concept will be used by EPA to focus research and promote the availability of accurate, cost effective inventory procedures within 5 to 10 years. Ideally, the resulting method would be sensitive to all potential emission control strategies, including vehicle changes, new fuels, inspection and maintenance strategies, and transportation control measures. Emission estimates from the new procedure would also be calibrated to provide representative values across states and be validated with ambient measurements. Emission inventory estimates are used by EPA and states in models to determine the effectiveness of various control strategies for achieving air quality standards. If the inventory estimates are inaccurate and do not correctly reflect the results of planned controls, costly controls could be implemented without improving the environment. Current estimates indicate that highway vehicles emit over 50% of the reactive hydrocarbons and carbon monoxide (CO) in many ozone and CO nonattainment areas. If highway vehicles were actually responsible for twice this amount, as recent studies have suggested, then control plans for some other smaller sources may produce less desirable and less cost effective results.
"Presented at the AWMA Specialty Conference, Durham, NC, 9/9-12/91." "December 1998." Includes bibliographical references. Microfiche.
Contents Notes