Third Report to Congress: Highlights of the Diesel Emissions Reduction Program.

摘要

From goods movement to building construction to public transportation, diesel engines are the modern-day workhorse of the American economy. Though diesel engines are reliable and efficient, older ones emit significant amounts of exhaust including particulate matter (PM) and nitrogen oxides (NOX), which can harm human health. Despite the recent implementation of the U.S. Environmental Protection Agency’s (EPA) most stringent emissions standards, approximately 10.3 million older diesel engines remain in use1. EPA began awarding clean diesel grants in 2008 under the Diesel Emissions Reduction Act (DERA), a grant program created by Congress as part of the Energy Policy Act of 2005 to reduce diesel exhaust from these older engines.