What is the top priority in motor vehicle exhaust emission control?

[StAlana]

Motor vehicle exhaust emission control primarily focuses on emissions from older vehicles and diesel-powered vehicles. Here is relevant information: Introduction: Nowadays, exhaust emissions mostly refer to vehicle exhaust, which is the waste gas discharged from a vehicle's tailpipe. Vehicle exhaust is another major factor in air pollution, containing carbon monoxide, nitrogen oxides, and other solid particles that adversely affect human health, especially leaded gasoline, which poses even greater harm to humans. Control Methods: The most fundamental and ultimate approach is to change the vehicle's power source, such as developing electric vehicles and alternative fuel vehicles. This method ensures that vehicles produce little to no polluting gases.