The main components of automobile exhaust are carbon monoxide, hydrocarbons, nitrogen oxides, carbon dioxide, sulfur dioxide, lead and some particulate matter. The substances that can pollute the environment in automobile exhaust include carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, lead-containing compounds and some particulate matter.

Automobile exhaust is the exhaust gas produced when automobiles are used. It contains hundreds of different compounds, among which pollutants are solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead and sulfur oxides.

Tail gas not only directly harms human health, but also has a far-reaching impact on human living environment. Sulfur dioxide in the tail gas has a strong pungent smell. When it reaches a certain concentration, it will easily lead to "acid rain", which will cause acidification of soil and water sources and affect the growth of crops and forests.

As one of the main sources of air pollution, automobile exhaust contains a lot of harmful substances, including carbon monoxide, nitrogen oxides, hydrocarbons and solid suspended particles. PM2.5, which has become the focus of social attention, belongs to the category of solid suspended particles.

Automobile exhaust is not only one of the main sources of PM2.5 in big cities, but also one of the chief culprits of air pollution in many cities, and photochemical smog is one of its main effects.

Tail gas not only directly harms human health, but also has a far-reaching impact on human living environment. Sulfur dioxide in the tail gas has a strong pungent smell. When it reaches a certain concentration, it will easily lead to "acid rain", which will cause acidification of soil and water sources and affect the growth of crops and forests.