Reducing Diesel Pollution

Does Oregon have an air pollution problem?

The short answer: Yes.

As long as air pollution is putting people at greater risk of cancer, heart and lung disease and harm to the brain, Oregon has air pollution problems.

Industry, wood burning and traffic all contribute to air pollution. But one source is uniquely toxic: diesel pollution from commercial engines—heavy-duty trucks, buses and construction equipment.

Does Oregon have air pollution solutions?


Oregon will need more than one solution to make sure our air is healthy. Work is underway to address wood smoke and industry emissions. And the answer to diesel pollution is clear: replace old engines with vastly cleaner new ones.

New engines for heavy duty trucks and construction equipment can run with 90% less pollution on a variety of alternative fuels.

What will it take for Oregon to clean up diesel?

 If healthful air for all Oregonians is our goal, we must address all diesel pollution including the two biggest sources: trucks and buses (on-road) and construction equipment (non-road) engines.

In 2019, Oregon Environmental Council will support smart diesel policy that 1) renews our fleets across the state with cleaner engines; 2) assists engine owners in making the transition to cleaner fleets; 3) protects communities from exposure as we make the transition. See details. 

Add your voice to support for strong action on diesel in 2019:

Learn more about the problem and solutions

Dirt on Diesel 2016 report.