1346 II. FALLOUT FROM NUCLEAR WEAPONS TESTS In the case of cesitm and tine: x s(t) =a (1 -a ®t) 4 84 eat ale x is the daily accretion in uc/day, and a, ia the body burden in uc at t = 0. =-a8 +X = -8 ” x set +a(l- e78t)} +x = -E(t) + x xP(t) = E(t)» a [se** +e Q- eat M= lin s(t) =x - 5 a t—» oO zine”? a= 6.3.x 1073 days! (41/2 « 110 anys) k= 10 BAF 0.03 uc Ces furl 37 a« 4.€ x 1073 days") (t1/2 = 156 days) =O #The urinary/fecal ratio of rediccesium for human subjects ia about 5/1, so that attoePciedaMNRaeee5 estimates of body burden are too lcw by about 20 percent. a ber tM ae es BL k« if + aseateraged) te ? % 4 a i, eae ; POE el si PCs aes Baegt u ee teal free F