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Geochemical Journal
Geochemical Journal An open access journal for geochemistry
Published for geochemistry community from Geochemical Society of Japan.

Plutonium isotopes in the atmosphere

M. B. Gavini, P. K. Kuroda
Geochemical Journal, Vol. 11, No. 4, P. 257-260, 1977

ABSTRACT

The concentrations of 238Pu and 239, 240Pu were measured in surface air and rain samples collected at Fayetteville (36°N, 94°W), Arkansas, during the period between October 1971 and November 1973. The 238PU/239, 240Pu ratios in many of the samples were found to be in the range between 0.1 and 0.3. These results indicate that appreciable amounts of 238Pu are being injected into the atmosphere by the recent nuclear weapons tests.

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