Sr99 SOIL CONCENTRATION, MC/SQ MILE 6.0 | | Po | | [ | | | 5.0 _—— —_ BEIRUT, LEBANON 4.0 -— . ANTOFAGASTA, CHILE 3.0 cole LIMA, PERU — ALGIERS, ALGERIA a @ ANKARA, TURKEY *® TERBOL, LEBANON e DAMASCUS, SYRIA 4.0 @ ROME, ITALY ADEN, SAUDI ARABIA) —-—— ASUNCION, PARAGUAY __ eas eee ooo SAO PAULO, BRAZIL + Sato Oo 5 40 5 20 25 30 35 40 45 50 55 60 ANNUAL RAINFALL, IN. Fig. 13-——Sr™ soil concentration vs. annual rainfall. , Eastern Mediterranean area, February 1955; ----, South America, January 1956. Fig. 14—Sr®™ in U.S. soil (HASL, Oct. 8, 1956) (HCl extraction method). Numbers arein millicuries per square mile at individual site. 323