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Study Finds '07 Diesels Cleaner
Wednesday, 24 June 2009 00:00

Reductions in diesel engine emissions far exceed expectations

Clean diesel technologies in engines manufactured beginning in 2007 not only reduced certain emissions by 90 percent compared to 2004 models, but far exceeded expectations in their performance in cleaning
up the nation’s air quality, a new study shows.

Emission reductions by 2007 model engines “exceeded substantially even those levels required by law,” said the study, conducted by the Coordinating Research Council and the Health Effects Institute.

Current engine models produced 98 percent less carbon monoxide, 10 percent less nitrogen oxide, 95 percent less non-methane hydrocarbons and 89 percent less particulate matter than required by EPA’s 2007 diesel engine emission standards.

“These latest emissions figures are a testament to the trucking and engine manufacturing industries’ deep commitment to the environment,” said ATA President and CEO Bill Graves. “We’re proud of the significant
progress that has been made and we look forward to building upon this foundation as we continue to work toward a more sustainable future.”

The Journal of Commerce Online, 6/24/2009