TITLE

Determining on-road emissions

PUB. DATE
May 2008
SOURCE
Tribology & Lubrication Technology;May2008, Vol. 64 Issue 5, p10
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article discusses the results of a study on actual road emissions from vehicles, carried out by Donald Stedman and Gary Bishop. Data show that emissions in new vehicles declined by a factor of three during the last decade since 1997, while emissions from older vehicles did not increase over time. One factor that is common to all cities evaluated is that all have state vehicle inspection and maintenance programs designed to reduce emissions. This led the researchers to conclude that the main reason for emissions reduction is due to improvements in the vehicle's sensors used to monitor and control combustion in the engine.
ACCESSION #
32170425

 

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