| contamination |
the state of being contaminated contaminant: a substance that contaminates the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
출처: wordnet.princeton.edu/perl/webwn
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| contamination |
Pollution is the release of harmful environmental contaminants, or the substances so released. Generally the process needs to result from human activity to be regarded as pollution. Even relatively benign products of human activity are liable to be regarded as pollution, if they precipitate negative effects later on. The nitrogen oxides produced by industry are often referred to as pollution, for example, although the substances themselves are not harmful. ...
출처: en.wikipedia.org/wiki/Contamination
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| contamination |
the state of being contaminated or impure (not pure) by contact or mixture; the state of having a substance introduced into the air, water, or soil that reduces its usefulness to humans and other organisms in nature.
출처: www.wef.org/publicinfo/newsroom/wastewater_glossar...
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| contamination |
The tainting of members of the comparison or control group with elements from the program. Contamination threatens the validity of the study because the group is no longer untreated for purposes of comparison.
출처: www.ojp.usdoj.gov/BJA/evaluation/glossary/glossary...
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| contamination |
the introduction of a harmful substance into the water, either at the supply or during distribution, ; contamination can occur naturally or by the hands of humans
출처: whyfiles.larc.nasa.gov/text/kids/Problem_Board/pro...
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