What are the components of motorcycle exhaust?
1 Answers
Motorcycle exhaust is the waste gas produced during the use of motor vehicles, containing hundreds of different compounds. The pollutants include solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, and sulfur oxides. Exhaust not only directly harms human health but also has a profound impact on the environment of human life. The sulfur dioxide in exhaust has a strong irritating odor and, when reaching a certain concentration, can easily lead to the occurrence of "acid rain," causing soil and water sources to acidify and affecting the growth of crops and forests. To curb the production of these harmful gases and encourage automobile manufacturers to improve their products to reduce the sources of these harmful gases, both Europe and the United States have established relevant automotive emission standards. Among them, the European standard is the automotive emission standard that China has referenced. Domestic new cars will indicate which national emission standard the engine exhaust emission meets. Currently, the motorcycle exhaust emission is in the fourth stage, which is the China IV emission standard. According to regulations, after July 1, 2019, only motorcycles whose exhaust emissions meet the China IV standard can be registered. The previous China III motorcycles have ceased production, sales, and registration.
