Pollution

Pollution is contamination of a system with harmful foreign components.[1] The most common usage of the word pollution refers to environmental pollution, which is contamination of the air, ground, or water by harmful chemicals or particulate matter. A less common use is noise pollution, which is "contamination" of a quiet space by disturbing sounds and can be disruptive to both human activities and wildlife.

## See also[edit]

* Atheism and the environment
* Health

## References[edit]

1. ↑ http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=pollution