The purpose of this study was to identify professional factors related to benzene exposure and to deduce suitable safety measures.
Atmospheric benzene, urinary muconic acid (tt-MA) and leukocyte alkaline phosphatase activity (LAPA) were evaluated among 66 car mechanics, 34 road tanker drivers, and 28 nonexposed workers.
Professional and medical questionnaires were filled in at the same time.
Atmospheric benzene was significantly higher among road tanker drivers than among car mechanics.
The arithmetic mean ± SD, median, and geometric mean values were, respectively, 0.48 ± 1.49,0.14, and 0.06 mg/m3 among car mechanics and 1.88 ± 4.18,0.68, and 0.65 mg/m among road tanker drivers.
In the latter case the increase was caused by transport of unleaded petrol and correlated with the volume of the tank.
Among car mechanics, tobacco smoking, windy conditions, dismantling of petrol filters, and handling of petrol increased atmospheric benzene levels.
Urinary muconic acid was increased significantly among car mechanics (148 ± 137,127, and 111 mug/g) and among road tanker drivers (309 ± 420,137, and 151 mug/g) as compared with the controls (49 ± 46,33, and 33 mug/g).
Among road tanker drivers, alcohol intake and transportation of unleaded petrol increased the excretion of muconic acid, which was also directly related to the volume of the tank. (...)
Mots-clés Pascal : Benzène, Solvant organique, Exposition professionnelle, Garage commercial, Citerne, Conducteur véhicule, Homme, Marqueur biologique, Essence sans plomb, Facteur risque, Alkaline phosphatase, Phosphoric monoester hydrolases, Esterases, Hydrolases, Enzyme, Leucocyte, Teneur air ambiant, Médecine travail, Mécanicien
Mots-clés Pascal anglais : Benzene, Organic solvent, Occupational exposure, Commercial garage, Cistern, Vehicle driver, Human, Biological marker, Unleaded gasoline, Risk factor, Alkaline phosphatase, Phosphoric monoester hydrolases, Esterases, Hydrolases, Enzyme, Leukocyte, Ambient air concentration, Occupational medicine
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0269649
Code Inist : 002B03L04. Création : 27/11/1998.