The indirect or direct alteration of the biological, thermal, physical, or radioactive properties of any medium in such a way as to create a hazard or potential hazard to human health or to the health, safety or welfare of any living species.
(Source: ALL)
the state of being polluted
the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
the state of being contaminated with harmful substances
undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
