 | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
| |||||||||||
Half life?
editIs the 213 days quoted a true half life or the atmospheric residence time, which is a measure of the exponential decay and is more scientifically established as 1/e of the original concentration?--Devilinhell (talk) 09:26, 27 March 2008 (UTC)