The release and persistence of radioactive anthropogenic nuclides
Atmospheric testing of nuclear weapons during the period 1945-1980 ushered in the 'atomic age' and released large quantities of anthropogenic radiogenic nuclides into the atmosphere. These radionuclides were subsequently deposited as fallout to the entire surface of the planet. While many have decayed to negligible levels, long-lived radionuclides persist and will do so for thousands of years. Isotopes of plutonium, 239Pu (half-life 24 100 years) and 240Pu (half-life 6563 years), provide the...[Show more]
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|Source:||Geological Society of London Special Publication|
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