Medical doctors, nurses, attendants, and patients at the UFRJ paediatric hospital were accidentally exposed to inorganic mercury. From July to December 1992, 228 mercury thermometers were broken in 6 paediatric wards. Contamination of the exposed group was assessed by a comparative cross sectional study in January 93. Mercury concentration was found to be two times higher in the urine of these professionals than in the control group (p<0.001).
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