Associations Between Bioaerosol Exposures and Lung Function Changes Among Dairy Workers in Colorado
| Autor: | Ander Wilson, Sheryl Magzamen, Joshua W. Schaeffer, Sheena E. Martenies, Stephen J. Reynolds, Grant Erlandson, Jill A. Poole, Mary Bradford, Zachary D. Weller |
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| Rok vydání: | 2020 |
| Předmět: |
Spirometry
Colorado Future studies Indoor bioaerosol Air Microbiology Air Pollutants Occupational Article 03 medical and health sciences 0302 clinical medicine Occupational Exposure Environmental health Humans Medicine Lung Lung function Respiratory health Aerosols medicine.diagnostic_test business.industry Public Health Environmental and Occupational Health Repeated measures design Dust 030210 environmental & occupational health Dairying Sample size determination business Bioaerosol |
| Zdroj: | J Occup Environ Med |
| ISSN: | 1536-5948 1076-2752 |
| DOI: | 10.1097/jom.0000000000001856 |
| Popis: | Objective Limited studies have examined effects of bioaerosols on the respiratory health of dairy workers; previous findings have been inconsistent across populations. Methods Using a repeated measures design, exposures to dust, bioaerosols, and ozone were assessed and pre- and post-shift spirometry was performed for dairy workers (n = 36). Workers completed 1 to 8 visits. Linear mixed effect models estimated associations between air pollutant constituents and changes in spirometry. Results There was an association between higher dust exposures and increased peak expiratory flow rate. However, for all other outcomes there was no association with the exposures considered. Conclusions Relationships between bioaerosol exposures and respiratory health in dairy workers remain unclear. Future studies should increase sample sizes, include repeated measures designs, vary the timing of spirometry measurements, and include markers for Gram positive bacteria such as muramic acid or peptidoglycan. |
| Databáze: | OpenAIRE |
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