Difference between revisions of "Half-life"
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{{Definition|title=Half-life (of a pollutant) | {{Definition|title=Half-life (of a pollutant) | ||
| − | |definition=The time required for a pollutant to lose one-half of its original concentration. For example, the biochemical half-life of DDT in the environment is 15 years. 2) The time required for the elimination of half a total dose from the body. | + | |definition=The time required for a pollutant to lose one-half of its original concentration. For example, the biochemical half-life of DDT in the environment is 15 years. |
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| + | 2) The time required for the elimination of half a total dose from the body. | ||
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Revision as of 12:45, 26 August 2009
Definition of Half-life (of a pollutant):
The time required for a pollutant to lose one-half of its original concentration. For example, the biochemical half-life of DDT in the environment is 15 years.
2) The time required for the elimination of half a total dose from the body.
This is the common definition for Half-life (of a pollutant), other definitions can be discussed in the article
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