Air pollution

Smoke and chimneys

Smoke and chimneys

Industrial plant

Industrial plant

Cargo ship

Cargo ship

Particulate matter

Particulate matter

Particulate matter representation

Particulate matter representation

Exhausts and smog

Exhausts and smog

Urban smog

Urban smog

Air traffic

Air traffic

Vehicular traffic

Vehicular traffic

Air pollution takes place when chemicals contaminate the atmosphere affecting its structure and composition and producing significant harmful effects on human health, animals, vegetation and environmental quality. 
Air pollutants can be classified according to their origin:

  • anthropogenic (man-made) sources, which are the result of various human activities;

  • natural sources such as fire particles, volcanic eruptions and degradation of organic matter.