Respiratory symptoms and ventilatory capacity in swine confinement workers.
Zuskin-E; Zagar-Z; Schachter-EN; Mustajbegovic-J; Kern-J
Br J Ind Med 1992 Jun; 49(6):435-440
The prevalence of respiratory symptoms and ventilatory function abnormalities were studied in a group of swine confinement workers employed on swine farms near Zagreb, Yugoslavia. Chronic respiratory symptoms such as chronic cough or phlegm, chronic bronchitis, dyspnea, and occupational asthma were recorded in 41 men and 18 women employed in swine confinement areas. Ventilatory capacity was assessed by measuring maximum expiratory flow volume. Airborne dust, ammonia (1336216), hydrogen-sulfide (7783064), carbon- dioxide (124389), carbon-monoxide (630080), and airborne bacteria concentrations were measured at the worksites. Chronic cough, dyspnea, and chest tightness were noted in both male and female subjects. Female workers exhibited a 50% prevalence of dyspnea. No evidence of occupational asthma was observed in the workers sampled. Statistically significant changes were observed in the ventilatory capacity of workers. The greatest across shift reductions in ventilatory capacity in workers were recorded for maximum capacity flow rates at 25%. Women exhibited lower than predicted forced vital capacity and forced expiratory volume in 1 second values. All ventilatory capacity values in male workers were lower than predicted. Airborne contaminant concentrations in the confinement buildings were all within recommended Yugoslav values. The authors conclude that there is an increased prevalence of acute and chronic respiratory symptoms and abnormalities in workers employed in swine confinement areas.
NIOSH-Publication; NIOSH-Grant; Pulmonary-system-disorders; Animal-husbandry-workers; Dust-inhalation; Lung-function; Lung-disease; Occupational-exposure; Occupational-hazards; Organic-dusts; Occupational-respiratory-disease; Pulmonary-function
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British Journal of Industrial Medicine
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