"Diesel particulate" refers to tiny solid particles that are released into the air as a byproduct of burning diesel fuel in engines. These particles can be harmful if inhaled and can contribute to air pollution. Full definition
The premiere variant — the 55 kW / 75 hp Corsa 1.3 CDTI ecoFLEX with diesel particulate filter — makes its European premiere at the IAA. (topspeed.com)
All major OECD economies have dramatically reduced fine PM and BC emissions from heavy - duty diesel vehicles through a combination ultra-low sulfur diesel fuel and diesel emission control technologies; there is up to a 99 per cent removal efficiency with diesel particulate filters. (ccacoalition.org)
These buses also eliminate 10 tons of nitrogen oxides and 350 pounds of diesel particulate matter, improving air quality in the communities that they serve. (transportation.gov)