When burning any fuel, various combustion emissions are released. These wastes have a great impact on human health and the environment. Factories, factories and motor transport enterprises in the city are the main sources of environmental pollution. If the plants and factories are located in one specific place and pollute this place, and cars will have an effect wherever they work. Motor transport is currently considered to be more polluting of the environment than factories and plants. In this article, the composition of exhaust gases emitted by motor vehicles during operation, their harmful effects on the environment and ways to eliminate them, environmental and environmental damage are described in this article. factors, their legal prevention and solution, as well as conclusions and suggestions for the above problems.