What are the harmful gases emitted by vehicles?

[Madelyn]

Vehicles emit harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, lead, etc. Here is a detailed introduction to the harmful gases emitted by vehicles: Hazards: Vehicle exhaust not only poses risks to humans but also has toxic effects on plants. Secondary pollutants in the exhaust, such as ozone and peroxyacetyl nitrate, can cause necrotic spots and dry patches on plant leaves. Ethylene can affect the flowering and fruiting of plants. Vehicle exhaust is particularly harmful to crops like sugar beets, spinach, tomatoes, and tobacco. The reduction in crop yields along highways is significantly correlated with vehicle exhaust pollution.