A new study released by the Coordinating Research Council in cooperation with the Health Effects Institute highlights the robust low-emissions performance of the new generation of clean diesel technology manufactured starting in 2010. The study found a more than 60-percent reduction in emissions of nitrogen dioxide as compared to previous 2007 models, and 99-percent reduction compared to 2004 models.  The study noted that the reductions "exceeded substantially even those levels required by law."

"These findings underscore just how clean this new generation of fuels, engines and emissions control technology really is, coming in substantially cleaner than required under the EPA and California Air Resources Board (CARB) standards" said Allen Schaeffer, executive director of the Diesel Technology Forum, a Frederick, Md-based organization representing the diesel industry.  

The study, “The Advanced Collaborative Emissions Study (ACES),” is a multi-party, five-year study to test the emissions and health effects of the new technology diesel engines to document the improvements that have been made and to ensure that there are no unintended emissions from this new technology, according to the Diesel Technology Forum. This portion of the ACES study (Phase 2) builds on the findings from Phase 1 completed in 2009 that found substantially lower levels of emissions of particulate matter than anticipated; in that case 2007 engines were 99 percent lower compared to 2004 models.