pollution: the introduction of harmful substances or products into the environment contamination: The presence of extraneous, especially infectious, material that renders a substance or preparation impure or harmful Contamination does not necessarily have to be introduction of harmful substances or products into the environment. For example, you can say: The lab is contaminated with radioactive substance. But you wouldn't say: The lab is polluted with radioactive substance.

Polution is Noun undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities the state of being polluted Contamination is also a noun the state of being contaminated a substance that contaminates the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors

pollution the interference in the purity of air,water and soil, because mixed with harmful chemicals, especially by throwing its human industrial wast. contamination is same pollution but this is lead to disease for human or animals , the pollution not lead to disease ......... that is all the difference