Spring Peak of Strontium-90 Fallout

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Science  16 Sep 1960:
Vol. 132, Issue 3429, pp. 742-743
DOI: 10.1126/science.132.3429.742


An increasing trend of Sr90 concentration in rain observed at Fayetteville, Ark., after November 1959, indicates that the seasonal and global movements of stratospheric air masses, such as described by Brewer (I) and Dobson (2), play an important role in causing the spring peaks of the Sr90 fallout.