Total dust and endotoxin in poultry operations: comparison between cage and floor housing and respiratory effects in workers.
Kirychuk-SP; Dosman-JA; Reynolds-SJ; Willson-P; Senthilselvan-A; Feddes-JJ; Classen-HL; Guenter-W
J Occup Environ Med 2006 Jul; 48(7):741-748
Objective: The objective of this study was to assess respiratory outcomes and environmental exposure levels of workers in cage-housed and floor-housed poultry operations. Methods: Poultry operations were evaluated for total dust, endotoxin, and ammonia, and respiratory symptoms and lung function tests of workers were conducted. Results: Workers in floor-housed poultry operations had significantly greater exposures to total dust and ammonia, whereas workers from cage-housed poultry operations reported greater frequency of current and chronic symptoms overall and significantly greater current and chronic phlegm (39% vs 18% and 40% vs 11%, respectively). Endotoxin concentration (EU/mg) was a significant predictor (P = 0.05) of chronic phlegm for all poultry workers. Conclusions: Greater endotoxin concentration in the presence of significantly lower total dust, in conjunction with greater respiratory symptoms in workers from cage-housed poultry operations, as compared with workers from floor-housed poultry operations, appears to indicate that differences in environmental exposures may impact respiratory outcomes of workers.
Agricultural-chemicals; Agricultural-industry; Agricultural-machinery; Agricultural-processes; Agricultural-products; Agricultural-workers; Agriculture; Animal-products-workers; Animal-studies; Animals; Environmental-exposure; Environmental-factors; Environmental-hazards; Environmental-health; Environmental-health-monitoring; Environmental-physiology; Environmental-pollution; Environmental-protection; Environmental-stress; Environmental-technology; Health-hazards; Health-standards; Poultry; Poultry-industry; Poultry-workers; Exposure-chambers; Exposure-levels; Exposure-limits; Exposure-methods; Confined-spaces; Work-analysis; Work-areas; Work-capability; Work-capacity; Work-environment; Work-operations; Work-practices; Worker-health; Workers; Workplace-monitoring; Workplace-studies; Respirable-dust; Respiration; Respirators; Respiratory-hypersensitivity; Respiratory-infections; Respiratory-irritants; Respiratory-protection; Respiratory-system-disorders; Chemical-hypersensitivity; Chemical-properties; Chemical-reactions; Chemical-structure; Chemical-synthesis; Endotoxins; Dust-analysis; Dust-exposure; Dust-measurement; Dust-particles; Dust-samplers
S. P. Kirychuk, Institute of Agricultural Rural and Environmental Health, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
Agriculture; Cooperative Agreement
Journal of Occupational and Environmental Medicine
Colorado State University - Fort Collins