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Clean Diesel Technology Delivering Past Gains and Future Progress Toward Clean Air Goals for Particulate Matter

WASHINGTON, Dec. 14, 2012 /PRNewswire-USNewswire/ -- The advancements in clean diesel technology over the past decade in conjunction with new research and development in all modes of diesel engines will play a major role in helping meet the updated Clean Air Act particulate matter (soot) standards announced today by the U.S. Environmental Protection Agency.

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"For the last decade, diesel technology has undergone a fundamental transformation to near zero emissions, based on ultra low sulfur diesel fuel, advanced clean-burning engines and new emissions control technology," said Allen Schaeffer, the Executive Director of the Diesel Technology Forum.  "These advancements have occurred across the board - from the smallest industrial engine to the increasingly-popular clean diesel cars, commercial trucks, off-road machines and equipment, marine vessels and locomotives.

"The results of these efforts are clear since today, according to EPA, diesel engines account for only a small portion of the national PM emissions inventory – less than six percent."

Modern Diesel Trucks and Buses Have Near Zero Levels of Particulate Emissions
"These last 10 years truly are the decade of clean diesel and the results are visible today," Schaeffer said.  "New highway diesel truck engines have near zero emissions of particulate matter and oxides of nitrogen (NOx) – a remarkable 98 percent less than 1988 models. It is also noteworthy that truck and engine manufacturers are not only producing near-zero level emissions, but these vehicles are also consuming on average of five percent less fuel.

"Just how significant is this accomplishment? Consider that it now takes 60 of today's clean diesel heavy-duty trucks to equal the particulate emissions of one 1988 truck – a 60 to 1 ratio.

Similar Emissions Reductions Underway For Wide Range of Off-Road Engines
"Similar reductions in emissions of particulates and oxides of nitrogen are well underway and will be completed by 2014 for the wide range of off-road engines found in everything from small construction equipment and farm machinery to freight locomotives, marine vessels, work boats and very large off-road machines and mining equipment.

"The new generation of clean diesel technology is not only meeting its emissions reduction targets but is also exceeding them," Schaeffer said.  "Further contributions will come as more new technology engines and equipment are put into service in the years ahead.

"Just as the EPA's March 2012 Black Carbon Report to Congress stated that new diesel technology will play a major role in helping reduce black carbon emissions by 2030, new diesel technology will play a major role in helping meet the new Clean Air Act standards for soot."

Success in Diesel PM Reductions in California Highlight Technological Advancements
Schaeffer said the success in reducing diesel PM 2.5 in California highlights how new diesel technology is dramatically improving air quality.  The California Air Resources Board (ARB) identified the top-10 contributors to PM 2.5 and diesel engines and equipment rank as the 8th and 9th highest contributors, Schaeffer said.

California's Top 10 PM Contributors

1)      Wildfires  215.011 t/d
2)      Residential fuel combustion  109.322
3)      Managed burning & disposal  100.166
4)      Paved road dust  59.343
5)      Unpaved road dust  47.818
6)      Fugitive windblown dust  45.165
7)      Farming operations  39.585
8)      Heavy-heavy duty diesel trucks  29.910
9)      Off-road equipment  27.121
10)    Mineral processes  24.841

Schaeffer said according to the ARB, diesel particulate emissions from on-road heavy-duty trucks have declined from 7.5 percent in 1990 to 3.8 percent in 2008, with future projections in 2020 for the category to account for only 1.6 percent of all emissions.

Older Diesel Engines Can Be Modernized With New Technology
"Beyond the new technology advancements in reducing particulate emission, there are opportunities for modernizing and upgrading existing diesel engines and equipment," Schaeffer said.  "We are continuing to work with national environmental and health organizations to increase funding for the highly-successful voluntary and incentive-based Diesel Emissions Reduction Act, which is helping to modernize and upgrade older diesel engines in school and transit buses, commercial trucks, construction and agricultural equipment, and marine vessels."

The Diesel Technology Forum is a non-profit national organization dedicated to raising awareness about the importance of diesel engines, fuel and technology. Forum members are leaders in clean diesel technology and represent the three key elements of the modern clean-diesel system: advanced engines, vehicles and equipment, cleaner diesel fuel and emissions-control systems. For more information visit www.dieselforum.org

Steve Hansen
[email protected]
301-668-7230 (o)
202-355-3664 (c)

(View this press release online here.)

SOURCE Diesel Technology Forum

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