Embargoed For Release: December 4, 2013
For more information:
Dan Greenbaum, President 617 488 2331
Maria Costantini, Principal Scientist 617 488 2302
MOST ADVANCED EMISSIONS TESTS EVER PERFORMED FIND DIESEL TRUCK AND BUS ENGINES WITH DRAMATICALLY LOWER EMISSIONS OF KEY POLLUTANTS
(Boston, MA December 4, 2013) The most rigorous emissions testing ever done for modern heavy-duty diesel engines – which power virtually every large truck and bus sold in the United States – has demonstrated a greater than 94% reduction in the levels of nitrogen dioxide (NO2 - an important contributor to ozone smog), and substantial reductions in all other pollutants, even when compared to engines first marketed to meet 2007 standards, according to a study released today by the Coordinating Research Council (CRC) at www.crcao.org. For a number of the most important pollutants, levels were substantially lower than required by regulations. These 2010 engines represent the newest generation of emission control technology. They were developed in response to the US Environmental Protection Agency Heavy-Duty On-Highway Diesel Emissions Rule of 2001 which mandated the implementation of strict NOx standards starting in January 2010. The rule also mandated the implementation of a stringent PM standard in engines to be sold starting in January 2007.