TABLE II FRC_FROTECTIVE ACTICN GUIDE Caterory None _ (FRc #5) I (FRC #7) 4/ Wo (FRC #7) III (7RC #7) Environnental Pathway pasture-cowmilk-man pasture-cowmilk-man Sensitive Member plent uptake from root mate and soil Sr--900 Cs5-13f -I=!310) thyroid --- --- --- (10) dose to bone marrow and 10 1c dose to (2 gm thyroid) children ~l] year old consuming locally produced " foods suitable ‘sanple of population Dose in naase! Sr-hQ. children l year of ege local population other than Category I Body Crean (FAG) - INDIVIDUALS AND poruarroxs!/ whole body in first year dose to bone marrow and whole body in first year long term chronic dose to bone Marrow and whole body i Values for populations are given in parenthesis. (3.3) 5 (2) (3.3) 5 (2) 10 (3.3) 5 (2) Total 30 wen ase ; Reccomnended Actions 1. Change cattle from pasture to stored feed. 2. Sutstitute unaffected fresh milk ty altering processing or distribution practices. (5) l. Chante cattle from pasture to stored feed. 2. Substitute unatrected fresh milk. Divert or dispose of contaminated milk. wee l. Modification of aninal fecd, food processing, and morketing practices. 2. Diversion of crops from human food chain, 3. Destruction of crops or animal feeds. 15 e-- 3/ f PAG not provided for this category. If annual doses after first year execed 0.5 racs to individual or 0.2 reds for suitetle somple, situation to be copropriately evaluated. Case by case determination of desirability of ection. Action invelves long term ehornces in forming practices such as crop selection, chesic’ and mechanical soil treatment, and land utilization, The proper description of a "suitable saaple" of the population is contained in FRC reports. 2/wuiaes for individual catezories for Sr-89, Sr-90, and Cs-137 are sufficizntly conservative; i.e., low, that it is unnecessary to provide additions] limitations on combined doses. Since ell three nuclides contribute to bere marrow dose, the sum of projectcd doses from each should be compared to th: numerical value of the respective guide in the appropriate category when she need for protective action is considered, 3/ Assumes dose from Sr-89 ard Cs-137 received in first year. Contribution to total dose from Sr-90 is estimated to be five times dose in first year. uf Action not usually required in this category if not required in Category I. No additional total dose criterion precented.