Diesel fuel powers
more than
two-thirds of all
U.S. agricultural
equipment.
Agricultural
equipment emits
nearly one-quarter
of the NOx and
one-third of the PM
of all land-based,
nonroad diesel
emissions.
National Clean Diesel Campaign
Diesel-powered machines help make American farmers
among the most productive in the world. Over the last
few years, stakeholders representing the agricultural sec-
tor, including agricultural engine and equipment makers,
have been valuable contributors to the development of new
regulations that will ensure that new engines after 2010 will
be the cleanest in the world. The new engine standards,
combined with the cleanest fuels, will reduce overall emis-
sions from these engines by more than 95 percent.
There is, however, a legacy fleet in the fields today that
will continue to contribute significant levels of harmful
emissions over the next 20 years. Diesel engines produce
exhaust containing ozone-forming nitrogen oxides (NOx),
particulate matter (PM) or soot, and air toxics. With more
than 2 million agricultural diesel engines in the field,
the agricultural sector contributes significantly to
these emissions.
These pollutants contribute to serious health problems,
such as thousands of premature deaths, hundreds of thou-
sands of asthma attacks, millions of lost work days, and
numerous other health impacts, including cancer and car-
diovascular and lung conditions. These health problems
make reducing emissions from diesel engines one of the
most important air quality challenges facing the country.
Clean Agriculture USA
Reaping Cleaner Emissions
Through Partnerships
Clean Agriculture USA is a voluntary,
incentive-based program designed to reduce
diesel emissions from agricultural equipment.
Through the program, EPA has set a goal
of achieving significant diesel emission
reductions in the agricultural sector over
the next 10 years.
Clean Agriculture USA is one component
of EPA's National Clean Diesel Campaign
(NCDC), a voluntary initiative designed
to reduce the pollution emitted from diesel
engines across the country through the
implementation of varied control strategies
and the sustained involvement of national,
state, and local partners.
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How Does Clean Agriculture USA Help? What Can You Do?
Clean Agriculture USA brings partners together to identify and
develop cost-effective diesel emission reduction initiatives. Over
a 5-year period, EPA has developed a number of voluntary programs
designed to reduce emissions from the nonroad diesel fleet. EPA
provides technical support to project partners and verifies the effec-
tiveness of retrofit technologies. Retrofit programs are among the
most cost-effective measures for particulate matter control.
Through the Clean
Agriculture USA program,
farmers, agriculture
corporations, agriculture
equipment
manufacturers,
and related groups
can reduce
diesel emissions.
November 2005
EPA-420-F-05-031
There are many ways you can reduce the diesel emissions
from agricultural equipment, including:
• Retrofitting existing diesel equipment with verified
technologies, such as diesel oxidation catalysts
and diesel particulate filters.
• Using cleaner fuels such as ultra-low sulfur diesel
and biodiesel.
• Replacing the engine in an older diesel machine,
or replacing the entire machine.
• Keeping equipment well-maintained.
• Reducing engine idling.
National Clean Diesel Campaign
Where Can I Get More Information?
Visit the National Clean Diesel Campaign
Web site at: www.epa.gov/cleandiesel
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