XI, Gummed Paper Collections: ain Collected by Naval Research Laboratory using standard NYOO gummed papers, changed daily. Location and collection period sams as for NRL rains (see Table III, page 53). Table V .§r90 CONCENTRATION, NRL GUMMED PAPER COLLECTIONS WASHINGTON, D. C. Collection Total Sr70 2/7/55-2/14/55 7.0 days 2.2 + 0.3 93. 2/1h/55-2/21/55 7.0 days 1.9 + 0.2 CL 501-P h 2/21/55~-2/28/55 7.0 days 2.2 + 0.3 CL 502~P 5 2/28/55-3/7/55 7.0 days 301 + 043 CL 503-P 6,7&8 3/1/55-3/10/55 3.0 days 2.6 + 0.3 CL 50h-P 9 3/10/55=3/11/55 1.0 day - 1.3 + 0.2 3,0 days. .0 + 0.5 1.9 + 0.2 Sample Number NRL GP # CL 499-P 2 CLS500-P CL505-P ; ‘Date Time (dpm/ft2) 10, 11 & 12 3/12/95-3/1U/S5 CL 506-P 13 & 1h 3/1),/55=3/16/55 2.0 days CL 507-P 15 3/16/55~3/17/55 1.0 day | 2.8 + 0.4 —-1.0 day 2.7 + 0.3 51.75 hours 0.64 + 0,16 CL508-P 16 3/17/55=3/18/55 CL 509-P 17 & 18 3/18/55-3/20/55 FRE oa gel ne CL 510-P . 19 & 20 -- ' 3/20f/55-3/22/55***""2.0 days (one day missing) “92403 - CL 511-P 21 & 22 3/23/55-3/25/55 2.0 days - <0.3 CL 512-P 23 3/25/55-3/26/55 28 hours 2.9 + 0.3 OLSI3-P hk 2S =. 3/26/55-3/27/98 240 days Total cate “19 + 002 32.6 + 1.2 DOE ARCHIVES (7