The main harmful components of diesel engine emissions are nitrogen oxides and particulate matter.
1. When a diesel engine car accelerates, a large amount of black smoke will emerge from the exhaust pipe. These black substances are carbon particles, which are harmful to the human body and pollute the environment.
2. After a large amount of exhaust gas emitted by diesel engines enters the atmosphere, it can lead to an increase in ozone concentration. The number of fine dust particles in the exhaust gas emitted by diesel engines is 30 to 100 times higher than that of gasoline engines.
3. Most domestic cars or SUVs use gasoline engines, and only some tractors and trucks use diesel engines.
Extension: The combustible mixture in the combustion chamber of the diesel engine will burn itself, so the diesel engine does not need to use spark plugs. The advantage of diesel engines is that they have a lot of torque, so most trucks will use diesel engines. Cars with diesel engines can pull heavy loads, but the top speed of such cars is relatively low, which is not as good as cars with gasoline engines.
