Where is the tail gas of Xiamen vehicles detected?

Motor vehicle exhaust detection in Xiamen was carried out at Xiamen Vehicle Management Office, No.388 Fanghu Road, Huli District, Xiamen. Materials to be prepared for exhaust gas detection: a copy of the owner's ID card (one printed on the front and one printed on the back), the original vehicle driving license, and the third copy of compulsory insurance should be prepared for at least one whole day. Automobile exhaust: Automobile exhaust is the exhaust gas produced by automobiles, which contains hundreds of different compounds, among which pollutants include 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. The sulfur dioxide in the tail gas has a strong pungent smell. When it reaches a certain concentration, it will easily lead to "acid rain", acidifying soil and water sources and affecting the growth of crops and forests.