1. Carbon dioxide (CO2): This is the primary greenhouse gas emitted from diesel combustion. It contributes to climate change and can also cause respiratory problems.
2. Water vapor (H2O): This is a harmless byproduct of combustion.
3. Nitrogen oxides (NOx): These compounds are formed when nitrogen and oxygen in the air react at high temperatures. NOx can cause respiratory problems, acid rain, and smog.
4. Particulate matter (PM): This refers to small particles of solid or liquid matter suspended in the air. PM can cause respiratory problems and can also contribute to climate change by absorbing heat.
5. Sulfur dioxide (SO2): This compound is formed when sulfur in the diesel fuel reacts with oxygen. SO2 can cause respiratory problems and acid rain.
6. Carbon monoxide (CO): This gas is produced when there is insufficient oxygen available for complete combustion. CO is poisonous and can cause death if inhaled in high concentrations.
7. Hydrocarbons (HC): These are unburned fuel molecules that escape from the engine. HC can contribute to smog and can also be toxic.
