title: Biological half-time of cadmium in the blood of workers after cessation of exposure.
abstract: The biological half-time of cadmium in the blood of previously exposed workers was estimated after the cessation of exposure. Five men were followed for a period of 10 to 13 years. One-compartment and two-compartment exponential elimination models were used to describe the decrease in blood cadmium levels over time. The best fit to the observed data was obtained with a two-compartment model. The half-times estimated from this model ranged from 75 to 128 d for the fast component and from 7.4 to 16.0 years for the slow component. The results confirm that there is a very long whole-body biological half-time for cadmium, and the estimated half-times are similar to those obtained with different methods.
mesh_terms: D000328:Adult; D000368:Aged; D002104:Cadmium / Q000097:blood*; D004781:Environmental Exposure; D005500:Follow-Up Studies; D006207:Half-Life; D006801:Humans; D008297:Male; D008875:Middle Aged; D009787:Occupational Medicine
chemical_list: D002104:Cadmium