Abstract
Urine of mercury-exposed workers in a chlorine manufacturing factory and of staffs of our laboratory was separated into the supernatant solution and the precipitate by a centrifugation of 105, 000 ×g for 60min. The ratio of the amount of inorganic mercury in the precipitate to that in the supernatant solution ranged from 0.23 to 4.84, and was dependent upon the level of urinary mercury. The role of the desquamation of tubular cells is suggested as a possible route of urinary excretion of mercury.
