. welts weet atryay ae + ee : . a roa eee kk a ee SERLLES RANE TERESI me wh Teta RAEN RADIATION STANDARDS, INCLUDING FALLOUT 63 Estimates of $r-90 inventory from USSR Fall 1958, 1961 tests [Megacuries] Fal 1958 Deposited on | Fall 1961 ground Measured in 0.63 cro vec.19501 Stratosphere O17 covc.sssx oven 1.3can-wan. 621 Total measured 0.80 wer 1.5 Injected into atmosphere 1.25-1.50 (AEC estimate) 0.2. ? cro wan. iss2) armor 2.5 ReoRRRAHaceegRehaHEbadd *T0 70, 000 FT. FIGure 3. Sr-90 from 1961 USSR tests, January-March 1962 RELATIVE IN SITU GAMMA ACTIVITY TOO terteee cant a = — COEFENSE ATOMIC SUPPORT AGENCY } [> RELATIVE FILTER PAPER ceGAMMA ACTIVITY FEB. 1982 [HASL] SL §0rre D/M/1000 SCF ee Ssa e—— [— PESon TROPOPAUSE = oa = —_— be ; co bo 2030° FiGure 4, ° 0 South

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