Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Diesel exhaust refers to the mixture of gases and fine particles emitted from diesel engines during combustion. It contains harmful pollutants such as nitrogen oxides (NOx), particulate matter (PM), and volatile organic compounds (VOCs).
Related terms
Particulate Matter (PM): Tiny solid or liquid particles suspended in the air, including those found in diesel exhaust.