Car emissions refer to the gases and particles that are released from a vehicle's exhaust system while it is running. These emissions can include carbon dioxide, carbon monoxide, nitrogen oxides, and particulate matter.
Car emissions contribute to air pollution and can have negative effects on human health and the environment. They can cause respiratory problems, contribute to climate change, and harm plants and animals.
There are several ways to reduce car emissions, including using electric or hybrid vehicles, carpooling or using public transportation, keeping cars well-maintained, and avoiding unnecessary idling.
In most countries, cars are subject to emissions testing before they can be registered or sold. However, some countries have exemptions for certain types of vehicles, such as vintage cars.
Catalytic converters are devices that are installed in a car's exhaust system to convert harmful pollutants into less harmful substances before they are released into the environment. They play a crucial role in reducing car emissions.