Derivation and validation of a urinary excretion function for plutonium based on occupational exposure.
Formation of a three-component urinary excretion function using the data of occupational exposure cases is described. Measurement results of plutonium inhalation from two subjects over 6000 and 2500 d are used in the derivation of this function. The three-component excretion function obtained is U(t) = 0.0008e(-0.0566(t)) + 0.00009e(-0.0042(t)) + 0.00004e(-0.00008(t)). The function is therefore proposed as a reliable basis to make an uptake assessment for operational control for mixed class of plutonium dominated by M-class chronic exposure.
Yadav
J R
JR
Health Physics Laboratory, Bhabha Atomic Research Centre, GSO Complex, Tarapur-401 504, Thane (Dist), Maharashtra state, India. yadav_jogendra@rediffmail.com
Rao
D D
DD
Hegde
A G
AG
Aggarwal
S K
SK
D000398:Air Pollution, Radioactive / Q000032:analysis*; D002614:Chelating Agents / Q000627:therapeutic use; D003198:Computer Simulation; D006801:Humans; D019570:Inhalation Exposure / Q000032:analysis*; D016273:Occupational Exposure; D004369:Pentetic Acid / Q000627:therapeutic use; D011005:Plutonium / Q000493:pharmacokinetics* / Q000652:urine*; D011210:Power Plants; D011832:Radiation Injuries / Q000209:etiology / Q000517:prevention & control; D011834:Radiation Monitoring / Q000379:methods*
D002614:Chelating Agents; D011005:Plutonium; D004369:Pentetic Acid