Preventive measures reduce exposure to polycyclic aromatic hydrocarbons at a graphite electrode plant.
This study assessed the efficacy of preventive measures in a graphite electrode plant aimed at reducing occupational exposure to polycyclic aromatic hydrocarbons (PAHs).
Methods-Electrode workers (n=146) answered a questionnaire and provided an end of shift urine sample.
Urinary 1-hydroxypyrene (1-hpur), a biological marker of exposure to PAHs, was measured by high performance liquid chromatography coupled with : (a) fluorescence detection. 1-Hydroxypyrene concentrations were compared with the concentrations measured before implementing the preventive measures ; and (b) those of a control group of 54 men not occupationally exposed to PAHs.
After implementation of preventive measures, median concentrations 1-hpur were significantly reduced in some groups of workers : by - 24%, - 37% and - 30% in workers at the green electrode unit, one baking impregnation unit, and the laboratory, respectively.
In workers at a second baking impregnation unit, in end product finishing and in the power station 1-hpur concentrations were unchanged.
Urinary 1-hp concentrations were still significantly higher in each group of workers than in the control group (p<0.001 for any comparison).
Concentrations in the workers varied with the type of job, the highest values being found in workers engaged in the power station, in the two baking impregnation units and in the green electrode unit. (...)
Mots-clés Pascal : Composé aromatique polycyclique, Exposition professionnelle, Prévention, Homme, Surveillance biologique, Industrie, Electrode, Evaluation, Médecine travail, Brai houille
Mots-clés Pascal anglais : Polycyclic aromatic compound, Occupational exposure, Prevention, Human, Biological monitoring, Industry, Electrodes, Evaluation, Occupational medicine, Coal tar pitch
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0295759
Code Inist : 002B03L06. Création : 27/11/1998.