Chemicals or particles in the air that can impair the health of humans, animals, and plants are examples of air pollution. It also causes structural harm. Pollutants in the air come in a variety of forms. They can take the form of gases, solid particles, or liquid droplets.

Pollution reaches the Earth's atmosphere through a variety of pathways. The majority of air pollution is caused by humans, in the form of emissions from factories, cars, planes, or aerosol cans. Secondhand cigarette smoke is also considered pollution of the environment. Anthropogenic sources are pollution sources that are caused by humans.

In Russia air pollution is a common problem as here are a lot of factories. Currently, vehicle emissions exceed industry emissions in most Russian cities. Air pollution is attributed to 17% of childhood and 10% of adult diseases, as well as 41% of respiratory and 16% of endocrine diseases. Russia joined the 2015 Paris Agreement to fight climate change in September 2019.