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Original Articles

Box model for radon transfers into the stratosphere

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Pages 135-141 | Received 30 Dec 1988, Accepted 09 Jun 1989, Published online: 18 Jan 2017
 

Abstract

There is experimental evidence that the stratospheric reservoir of Pb-210 aerosols is fed from the troposphere by injections into the stratosphere of its mother nuclide Rn-222. In steady state conditions, it is possible to calculate, for the tropospheric air penetrating into the stratosphere, that an Rn-222 concentration of 10 pCi kg-1 is necessary to balance the stratospheric Pb-210 losses. This concentration is not typical of the values usually measured in the upper troposphere. This supports the idea that the troposphere-to-stratosphere transfers are discontinuous and occur following a strong tropospheric upward transport.