P9E SS 2s a a oe yy - ae ~~ a ~ ~ “SON ‘ \X ~ \ he NS x \ Nt Fig, 5—Strontium-90 in soil determined from the 1963 and early 1964 survey, millicuries per square mile. Isolines are based on observed data and mean precipitation patterns.
P9E SS 2s a a oe yy - ae ~~ a ~ ~ “SON ‘ \X ~ \ he NS x \ Nt Fig, 5—Strontium-90 in soil determined from the 1963 and early 1964 survey, millicuries per square mile. Isolines are based on observed data and mean precipitation patterns.