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Chronic and acute respiratory effects among grain mill workers
C Gimenez1, K Fouad, D Choudat
1Faculty of Medicine Cochin, Port-Royal, Department of Occupational Medicine, University René Descartes, Paris, France.
International Archives of Occupational and Environmental Health
|January 1, 1995
Summary
Mill workers exposed to flour dust experience more respiratory symptoms and reduced lung function compared to referent workers. Asthmatic workers showed greater lung function decline over the workshift, highlighting the impact of airborne allergens.
Area of Science:
- Occupational Health
- Pulmonology
- Environmental Medicine
Background:
- Occupational exposure to flour dust is linked to respiratory issues.
- Mill workers face potential chronic and acute respiratory effects from airborne particles.
- Understanding ventilatory impairment in this cohort is crucial for workplace safety.
Purpose of the Study:
- To compare respiratory symptoms and ventilatory impairment between mill workers and referent workers.
- To assess variations in pulmonary function over a workshift in exposed individuals.
- To investigate the influence of asthmatic status on lung function changes in mill workers.
Main Methods:
- 142 mill workers and 37 referent workers participated.
- Standardized questionnaires assessed respiratory symptoms and asthma prevalence.
- Pulmonary function tests (spirometry) were conducted pre- and post-workshift.
- Environmental assessment measured inhalable and respirable flour dust concentrations.
Main Results:
- Mill workers reported significantly higher prevalence of cough and phlegm.
- Pre-workshift lung function was lower in exposed workers (peak flow, FEF75%).
- Both groups showed significant post-workshift decreases in FVC and FEV1.
- Asthmatic exposed workers exhibited a greater decline in lung function over the shift.
Conclusions:
- Mill workers exhibit increased respiratory symptoms and reduced pulmonary function.
- Asthmatic status and timing of spirometry are critical factors in exposure studies.
- The findings suggest a need for enhanced workplace controls and health surveillance for flour dust exposure.
- A healthy worker effect may influence observed outcomes, warranting further investigation.