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arbcombo -- Off-road Emission Reduction Technology Forum and Roundtable

Posted: 13 Apr 2007 16:42:17
Off-road Emission Reduction Technology Forum and Roundtable

Tuesday, May 1, 2007 -- 9 a.m. to 4 p.m.
South Coast Air Quality Management District
Headquarters Auditorium
21865 Copley Drive
Diamond Bar, CA 91765

Compactors, dozers, excavators, scrappers, and other types of
construction equipment are major sources of nitrogen oxides
(NOx) and particulate matter (PM) emissions in the South Coast
Air Basin.  The majority of diesel engines in these applications
operate for more than 8 years before being rebuilt.  As such, the
emissions from construction equipment can have significant,
long-lasting effects on air quality.  The local, state and
federal government are (1) promulgating technology-forcing
requirements for reducing PM and NOx emissions from existing
off-road construction engines and (2) creating incentive
programs to provide part of the funds needed by affected fleet
owners to comply with these requirements.  Selective catalytic
reduction (SCR) systems and diesel particulate filter (DPF)
technologies have been used successfully in Europe to reduce NOx
and PM emissions from on-road sources by at least 70 and 85
percent, respectively.  Recent studies show that SCR with DPF is
also capable of reducing emissions from off-road construction
equipment with some manufacturers planning to verify their
technologies with CARB in the next few months. 

AQMD is pleased to host this one-day technology forum and
roundtable discussion on SCR and DPF technologies as a strategy
for controlling NOx and PM emissions from construction
equipment.  The morning sessions will consist of formal
presentations by a panel of government staff, technology and
engine manufacturers, and experts on SCR and DPF technologies. 
Topics will include AQMDs perspective, CARBs proposed
regulation, retrofit verification, and showcase program, and the
status of technology advancement, costs, and challenges of
SCR/DPF technologies.  In the afternoon, there will be a
roundtable discussion among the panelists to facilitate exchange
of views and solicit suggestions for future actions.  The
roundtable will be moderated by Dr. Timothy Johnson, Director of
Emerging Technology, Corning Environmental Technology.  Members
of the public will also be able to ask questions of the
Technology Forum/Roundtable participants. A technical summary of
the panel discussion will be prepared and made available on the
AQMD website.

The AQMD encourages anyone interested in this topic to attend
this forum free of charge. This forum will also be webcast live,
and copies of the agenda, presentations, and the webcast will be
posted on the AQMDs Technology Forum/Roundtable website at

If you have any questions about this forum, contact Mr. Adewale
Oshinuga by phone at (909) 396-2599 or by e-mail at
aoshinuga@aqmd.gov .


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