N) is approximately 32 aCi/m>, The Island the log normal median, the mean of concentrations detected on mean of measured concentrations (134 the less contaminated isiand of Eneu and 186 aCi/m>, respectively), and agrees well with this expected con- even the lowest concentration found centration. on the entire island are well above ° However, on Bikini 150 r T T 7 125 f- | New York, N.Y. 9 / f = Sterling, va. 100 | y/ = 7 Miami, Fa pM | 239,240, aci/m? / Puerto Rico Guayaquil, Ecuador On OL -10 / / / _ / ~——— SSpatboa, Panama | 0 | | 20 10 | | 30 [ 40 - Deg N latitude Fig. 1. Concentrations of 239,240, in air at various latitudes, taken during June 1970, by the HASL sampling network. —-4- ate TTP EE Se te perenneeng gene pene te et i