An assessment of the exposure of technicians working in a chemical laboratory for aromatic hydrocarbons at Neftochim, Burgas.
Medichem 1997 : Silver Jubilee Medichem Congress on Occupational and Environmental Health in the Chemical Industry. Varna, BGR, 1997/09/30.
The average exposure to aromatic hydrocarbons per working shift of laboratory assistants at a chemical laboratory were measured.
The laboratory is one of the service departments for four different production departments at Neftochim, Burgas - the largest oil refinery in Bulgaria.
Long-term sampling of the air from different workplaces in the laboratory was performed by sampling charcoal sorbent tubes (type CT-CN-2), manufactured by Higitest (type NIOSH).
The concentration of benzene, toluene, ethyl benzene. xylene and isopropyl benzene in the air at the laboratory was determined by gas chromatography using the Varian MEGA I with a flame ionisation detector and Inowax capilalry column.
The measured exposure levels of toxic substances in the aromatic hydrocarbons analysis laboratory were as follows :
Benzene, 0.15-1.3 mg/m3, in single samples its concentration was 4.06-8.63 mg/m3 ;
toluene, 0.15-0.46 mg/m3, in single samples its concentration was 5.5-15.62 mg/m3 : ethyl benzene in most samples was 0.02 mg/m3, in single samples its concentration was 20.68 mg/m3 ;
xylene in most samples was 0.4 mg/m3, in single samples its concentration was 0.51-1.68 mg/m3 ;
isopropyl benzene in most samples was 0. 1 mg/m3, in single samples its concentration was 0.20-1.12 mg/m3. (...)
Mots-clés Pascal : Exposition professionnelle, Médecine travail, Laboratoire, Composé aromatique, Industrie pétrolière, Homme, Teneur air ambiant, Lieu travail, Femelle, Comparaison interindividuelle, Poste travail
Mots-clés Pascal anglais : Occupational exposure, Occupational medicine, Laboratory, Aromatic compound, Oil industry, Human, Ambient air concentration, Work place, Female, Interindividual comparison, Workplace layout
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0067670
Code Inist : 002B03L06. Création : 31/05/1999.