نتایج جستجو برای: respiratory exposure
تعداد نتایج: 500241 فیلتر نتایج به سال:
Background & Objective: Exposure to chloride acid in industrial units can be associated with risks to the human respiratory system. The aim of this study was to investigate the respiratory symptoms and pulmonary dysfunction caused by exposure to chloride in acid washing unit of a steel industry. Materials and Methods: This cross-sectional study was a descriptive-analytic study performed in a s...
INTRODUCTION Job exposure in agricultural workers often leads to respiratory impairment. AIM To assess the influence of exposure duration and smoking on chronic respiratory symptoms and ventilatory capacity in agricultural workers. METHODS A cross-sectional study covered 75 agricultural workers, compared with an equal number of office workers matched by age, exposure duration and smoking st...
ABSTRACT A case study from July 1993 to June 1994 was carried out on the 711 persons of a glassplant workers (case), and 133 persons of a manufacturing foodstuffs workers (control). The purpose of this research is to determine the respiratory function due to free silica exposure. Statistical analysis of the spirometry test (18 parameters) show significant differences between averages of VC, F...
BACKGROUND Methylene diphenyl diisocyanate (MDI), a reactive chemical used for commercial polyurethane production, is a well-recognized cause of occupational asthma. The major focus of disease prevention efforts to date has been respiratory tract exposure; however, skin exposure may also be an important route for inducing immune sensitization, which may promote subsequent airway inflammatory re...
Introduction & Objective: Exposure to the environmental Tobacco smoke is associated with detrimental effects on pulmonary function in the children. This study investigated the relation between airway complications in children receiving general anesthesia with the passive inhalation of smoke and those who were not. Materials & Methods: 223 children scheduled to receive general anesthesia ca...
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