Neurological and neurophysiological examinations of workers exposed to arsenic levels exceeding hygiene standards.

Objectives: The assessment of the neurotoxic effect of arsenic (As) and its inorganic compounds is still the subject of interest due to a growing As application in a large array of technologies and the need to constantly verify the principles of prevention and technological parameters. The aim of this study was to determine the status of the nervous system (NS) in workers exposed to As at concentrations exceeding hygiene standards (Threshold Limit Values (TLV) - 10 μg/m(3), Biological Exposure Index (BEI) - 35 μg/l) and to analyze the relationship between the NS functional state, species of As in urine and As levels in the workplace air.

Material And Methods: The study group comprised 21 men (mean age: 47.