EXPOSURE RATES CALCULATED FROM SOIL SAMPLE DATA 137 AG BAG 125 o Location Total activity per cm* 368 pe 42 pe 32 pe Calculated from concentration in soil sample Inferred from field spectrum 19 ur/hr 9 ur/hr 1 pr/hr 23 ur/hr ll wr/hr 4 wr/hr Percentage of total exposure 57% 32% 9% Percentage of total exposure 61% 30% 9% rate based on soil analysis (see p. 11) rate from field spectrometer and ionization chamber data Location 7 Total activity per cm” 2240 pe 79 pe 242 pe Calculated from concen- 157 pr/hr 25 wr/hr 10 wxr/h: Inferred from field spectrum 84 ur/hr 20 wr/hr 10 ur/hi Percentage of total exposure rate“based on soil 82% 7% 9% Percentage of total exposure rate from field spectrom- 7A% 17% % tration in soil sample analysis eter data and (see p. 11) ionization chamber HOF ARCHIVES -~ 20 - eT ew oe ee ae ge