Most of the air pollution in our region comes from transportation – cars, trucks, ships, planes, and trains. Engine exhaust contains fine and diesel particulate matter, smog-forming chemicals, and cancer-causing toxics, all of which can affect our health. Transportation also causes nearly 50 percent of our region’s greenhouse gases. We promote technologies and best practices to reduce transportation emissions and protect public health and the climate.
Diesel exhaust is a leading source of toxic air pollution in the Puget Sound. Through our Diesel Program, we work with local businesses and governments to develop and employ strategies that reduce diesel pollution.
Volkswagen intentionally developed and installed computer programs (“defeat devices”) into their diesel cars, which allowed the vehicles to cheat federal emissions testing. In October 2016, the federal court finalized a lawsuit settlement agreement between government agencies and Volkswagen for some of their violations of emission standards.
We’re expanding the use of alternative fuels and advanced technology vehicles for a robust economy, healthy environment, and a more secure energy future. We are a part of a network of more than 80 communities within the U.S. Department of Energy’s Clean Cities Program.