Difference between revisions of "Residence time"
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| − | + | '''Residence time''' is the average time that a [[molecule]] of a substance stays in a given area. Residence time of species X is defined as the ratio of the mass X in the area to its removal rate.<ref name="jacob">Jacob, Daniel J. ''Introduction to Atmospheric Chemistry'' Princeton University: 1999</ref> | |
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| + | In [[atmospheric chemistry]], residence time is also called ''lifetime''. It can be used to describe how long [[pollutant]]s stay in the atmosphere. <ref name="jacob" /> | ||
==References== | ==References== | ||
Revision as of 03:40, October 5, 2007
Residence time is the average time that a molecule of a substance stays in a given area. Residence time of species X is defined as the ratio of the mass X in the area to its removal rate.[1]
In atmospheric chemistry, residence time is also called lifetime. It can be used to describe how long pollutants stay in the atmosphere. [1]