Mean residence time of plutonium in the troposphere

Autor:	Robert W. Holloway, David W. Hayes
Rok vydání:	1982
Předmět:	Radiochemistry Northern Hemisphere chemistry.chemical_element General Chemistry Sedimentation Atmospheric sciences Plutonium Troposphere Atmosphere of Earth chemistry Plutonium-240 Environmental Chemistry Stratosphere Plutonium-239
Zdroj:	Environmental Science & Technology. 16:127-129
ISSN:	1520-5851 0013-936X
DOI:	10.1021/es00096a015
Popis:	Plutonium is injected into the stratosphere by large atmospheric thermonuclear explosions. When aerosols bearing plutonium reenter the troposphere, they are removed by such processes as rainfall and sedimentation. In this work, the mean tropospheric residence time of stratospherically injected plutonium is calculated. A mean residence time of 71 days was obtained for the Northern Hemisphere. Calculated residence times showed little variation by geographic location or for different years.
Databáze:	OpenAIRE
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