Occupational exposure to air pollutants and health status of potroom workers of an aluminum reduction plant in a developing country were studied and compared with those in developed countries.
In this plant, the pots were constructed and installed without recommended gas collecting hoods or segmented side doors, and the workers did not use any respiratory protection.
These conditions, combined with manual material handling and poor housekeeping, gave rise to fugitive air pollution generation.
All 213 male potroom workers and 148 male control subjects were studied using air sampling, urinary fluoride measurement, ventilatory function testing, and a questionnaire on respiratory symptoms.
Workers in the potroom reported significantly higher frequency of respiratory symptoms than the control group.
Potroom workers, especially nonsmokers, showed significantly greater decrease in their ventilatory function parameters during the shift than those of the control group.
The exposure to airborne particulates and the consequent respiratory symptoms as well as the daily increase of urinary fluoride values were generally higher in this plant than in similar operations in developed countries.
This may be attributable to the fact that both process flow and machinery are often imported and assembled without the application of adequate engineering controls or complete understanding of proper safe work practices.
Mots-clés Pascal : Exposition professionnelle, Particule en suspension, Pollution air, Lieu travail, Usine aluminium, Ventilation, Appareil respiratoire, Particule respiratoire, Hygiène travail, Asthme, Fluorure
Mots-clés Pascal anglais : Occupational exposure, Suspended particle, Air pollution, Work place, Aluminum plant, Ventilation, Respiratory system, Respiratory particle, Occupational hygiene, Asthma, Fluorides
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0566485
Code Inist : 002B30B01B. Création : 01/03/1996.