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What are the components of vehicle exhaust emissions?

1 Answers

McBella

07/30/25 9:08am

Vehicle exhaust emission standards in China comply with the National IV Standard. Below are the harmful substances in vehicle exhaust and their hazards: Harmful substances in vehicle exhaust: Vehicle exhaust contains hundreds of different compounds, including pollutants such as particulate matter (PM), carbon monoxide (CO), carbon dioxide (CO2), hydrocarbons (HC), nitrogen oxides (NOx), lead (Pb), and sulfur oxides (SOx). Hazards of vehicle exhaust: While directly harming human health, exhaust emissions also have profound impacts on the environment. Sulfur dioxide (SO2) in exhaust has a strong irritating odor and can lead to "acid rain" when reaching certain concentrations, causing soil and water acidification and affecting crop and forest growth.

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