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Mid-Atlantic Clean Diesel Program
What is Diesel?
More Clean Diesel Information
In the Mid-Atlantic states and across the country, there is growing concern about pollution from diesel engines. We are all too familiar with the sight and smell of black soot that comes from some of our nation's trucks and buses. Diesel exhaust is not just a nuisance, it threatens public health. Numerous scientific studies indicate that exposure to pollution from diesel vehicles can cause cancer and other serious health problems. Diesel trucks and buses also emit significant amounts of nitrogen oxides, particulate matter (PM) and hydrocarbons (HC) that contribute to acid rain, ground level ozone and reduced visibility. However, diesel engines are a durable and economical source of power. EPA is working on a number of fronts to advance cleaner diesel engines. There are a number of things that you can do to contribute as well.
Download the following fact sheets and brochures:
Diesel Exhaust in the Mid-Atlantic States (PDF, 840KB, 4 pages, info about PDF)
Fact Sheet on School Bus Idling and Ways to Reduce Pollution (PDF, 590KB, 2 pages, info about PDF)
Fact Sheet on Long Duration Truck Engine Idling (PDF, 78KB, 1 page, info about PDF)
Health Effects
As part of EPA's National Air Toxics Assessment activities, EPA conducted a national-scale assessment of 33 air pollutants including diesel particulate matter. The goal of the national-scale assessment is to identify those air toxics which are of greatest concern. The assessment, which is based on 1996 emissions data, produced results that are useful in understanding the quality of air and its possible effects on human health nationwide. Click here to view an estimate of the ambient air concentrations of diesel particulate matter for the mid-Atlantic states.
For more information, see EPA's Health Assessment Document for Diesel Engine Exhaust
What is Region 3 doing?
The Mid-Atlantic Clean Diesel Program is part of a national effort by EPA, states and other organizations to reduce diesel emissions to protect public health and reduce or eliminate the harmful effects of exposure to diesel emissions. The EPA Mid-Atlantic region is working to promote collaboration and coordination among various organizations on clean diesel projects within the region, and to raise awareness of activities underway and the need for additional diesel emission reduction projects in the region.
Mid-Atlantic Clean Diesel News
Charts Showing Nonroad and Highway Diesel PM2.5 Emissions in Region 3
Region 3 Clean School Bus USA Program
Philadelphia Diesel Difference 
Mid-Atlantic Diesel Collaborative
Mid-Atlantic Clean Diesel Projects
Region 3 Vehicle Retrofit Projects
Mid-Atlantic Clean Diesel Project List