EPA reports improved air quality from bipartisan diesel emissions reduction act
According to the EPA’s “Diesel Emissions Reduction Act (DERA) Fifth Report to Congress,” DERA has delivered significant reductions in diesel emissions to protect human health and improve air quality in communities across the country.
From transportation to energy generation diesel engines power almost every sector of the American economy. Due to improved EPA diesel engine regulations and emissions standards over the past few decades, engines currently coming off the manufacturing line are now significantly cleaner than before. However, despite these tighter standards for new engines, the nearly eight million legacy diesel engines already in use continue to emit large amounts of PM2.5 and NOx. These air pollutants contribute to serious public health problems like asthma, lung disease, and various other cardiac and respiratory illnesses, which result in thousands of premature deaths, millions of lost workdays, and numerous other negative health impacts every year in the United States. EPA’s decades-long effort to reduce criteria pollutants, air toxics, and other harmful emissions from diesel fuel used in transportation has resulted in significant health and environmental benefits while advancing technology and minimizing cost. These benefits are a result of several programs that address diesel emissions and protect public health and air quality, including the Diesel Emissions Reduction Act (DERA) program.
Per the report, the DERA program has achieved the following outcomes and range of benefits:
- $801 million funds appropriated
- 73,700 engines or vehicle retrofitted or replaced
- Approximately $8 billion in monetized health benefits
- 54% of projects targeted to areas with air quality challenges
- 2.1 to 1 leveraging of funds from non-federal sources
- Emission and Fuel Reductions (491,000 tons of NOX; 16,800 tons of PM; 65,600 tons of carbon monoxide; 5,307,100 tons of carbon dioxide; 520 million gallons of diesel fuel saved).
DERA prioritizes environmental justice and emissions reductions in areas receiving disproportionate impacts from diesel fleets to provide an environment where all people enjoy the same degree of protection from environmental and health hazards. By concentrating on these objectives, the DERA program will continue to prioritize the most vulnerable communities and populations while further reducing emissions from diesel engines in the legacy fleet that cause adverse health impacts.
Key to remember: The DERA legislation emphasizes maximizing health benefits, conserving diesel fuel, and serving areas of poor air quality.