fcaction of dedyv activity axcraeted in cirine, fraction of GI tract activity entering blood, instantaneous activity in the body, Becquerels, ul . . -\ atom ingestion rate, atoms day , the fraction of atoms entering blood deposited in compartment i, uptake interval, day, instantaneous urine activity concentration, Becquerels liter . . male urine excretion rate, , . -1 liters day , female urine excretion rate, liters day , quality factor, os . 90 . os : . . disintegrations due to Sr remaining in body following uptake interval, Becquerel days, disintegrations due to 90 Sr in the body during uptake interval, Becquerel days, the dose equivalent to red marrow during uptake interval, mrem, the dose equivalent to bone during uptake interval, mrem, the dose equivalent to red marrow post uptake, mrem, the dose equivalent to bone post uptake, mrem, the absorbed dose to red marrow ser disintegration of 90 Sr in cortical bone, rads dis |, the absorbed dose eo: . 0 . to red marrow per disintegration of 3 Sr in trabecular bone, rads dis‘, che absorbed dose to red marrow cer disiategration of 90, in cortical bone, rads dis +, the absorbed dose to red marrow per disintegration of 90, in trabecular bone, rads dis l ", 26