Fallout from nuclear detonations of February and April 1960.
A sharp increase in the ratio of strontium-89 to strontium-90 in rain was observed at Fayetteville, Arkansas, after the French nuclear detonations of February and April 1960. Experimental data obtained suggest the possibility that part of the debris from atom bombs detonated in the tropical region may enter the stratosphere.
D001131:Arkansas; D011847:Radioactive Fallout / Q000706:statistics & numerical data*; D011891:Rain
D011847:Radioactive Fallout
RADIOACTIVE FALLOUT/statistics