| pollution |
undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities befoulment: the state of being polluted contamination: 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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| pollution |
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/Pollution
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| pollution |
The undesirable presence of matter or energy that can cause harmful environmental effects.
출처: science.education.nih.gov/supplements/nih2/chemica...
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| pollution |
Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard. The usefulness of the natural resource is usually impaired by the presence of pollutants and contaminants.
출처: www.nsc.org/ehc/glossar1.htm
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| pollution |
Harm to a natural environment, such as air, water, or soil through contamination with either natural or human-made materials. Such contamination may be deliberate, accidental, direct, or indirect. Throwing garbage into the lake, for example, makes the water unhealthy for fish and unfit for humans to swim. Indirect pollutants can enter our water supply from groundwater and runoff that contain agricultural fertilizers and pesticides or improperly disposed of industrial waste.
출처: www.ecohealth101.org/glossary.html
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