on HALL 2 a a Oe ee ee 2 280 / 428 LE 240 — — 200 + — a 4 ee 1.4 - 42.4 F412 4 oo 42.0 % 41.0 i — = — 160 + 41.6 <z 40.8 120 4 1.2 “= 4 0.6 L Homo BO - _ L £274 = a 40 We 4~ oo OF ft 70.8 = 7 0.4 _ pm ee ey | > > 0.4 _| OL Lt) ttSES1 o 10 30 50 1 30 50 #10 #30 «50 10 30 2000 2100 2200 2300 0.2 _lo RATIO OF PARTICULATE TO DISSOLVED BETA ACTIVITY AVERAGE TOTAL BETA ACTIVITY PER SAMPLE, PC/LITER 46 TIME, CST Fig. 17—Time cross section of total beta concentration (solid lines), rainfall rate (lines with x’s), and ratios of particulate to dissolved beta S20 TTT TTT OTF 280 |- 8 47.0 La 41.4 a 240 - x — [ +60 41.2. Zz ——_ 200 . . a 45.0 = ho 44.0 < 40.8 <7 bx 160 - — be , - 120 + |. Zz é 13.0 © + 0.6 - <= Lig peeve © 80 4 2.0 ws _ t = tm ad 40 0 y 2000 Pot | 10 6300 1.0 po xed 41.0 fe eK ee eX cee Ken, Toi yy f—(i50—i‘z;D”) 2100 yy yy YT | et oe oo tl tT TG 30:—i«iS0'i—i‘zi*S8ti<CKHOs—<“‘«é‘i:~C~*é«S' 2200 2300 TIME, CST 0 54 . > 0.2 _} 0 Fig, 18—Time cross section of total beta concentration (solid lines), rainfall vate (lines with x’s), and ratios of particulate to dissolved beta activity (lines with zeros) for station 8 for storm of May 9, 1964. RATIO OF PARTICULATE TO DISSOLVED BETA ACTIVITY AVERAGE TOTAL BETA ACTIVITY PER SAMPLE, PC/LITER activity (lines with zeros) for station 7for storm of May 9, 1964.

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