[Choice of the conditions for collecting urine samples for assessing occupational exposure of electric steel plant workers to nickel, chromium, manganese and copper]. / Dobór warunków pobierania próbek moczu dla oceny ekspozycji zawodowej pracowników elektrostalowni na nikiel, chrom, mangan i miedz.

The concentrations of Ni, Cr, Mn and Cu were determined in single urine samples of Electric Steel Works Workers, collected three times during a workshift on the 1st and fourth working days. The obtained results permitted settlement of optimum duration of urine samples collection, i.e. the fourth day after at least four hours. Basing on the determined concentrations of Ni, Cr, Mn and Cu the magnitude of Electric Steel Works workers' exposure was evaluated.