Contamination is the presentation of contaminants into an indigenous habitat that causes precariousness, issue, mischief or distress to the environment i.e. physical frameworks or living life forms. Contamination can appear as synthetic substances or vitality, for example, clamor, warmth, or light. Contamination is frequently classed as point source or nonpoint source contamination. The Metalworker Foundation issues every year a rundown of the world's most exceedingly bad dirtied places. In the 2007 issues the ten top chosen people are situated in Azerbaijan, China, India, Peru, Russia, Ukraine, and Zambia.

Types of Pollution