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Ventilatory function in rubber processing workers: acute changes over the workshift.

M Governa, M Comai, M Valentino

    British Journal of Industrial Medicine
    |February 1, 1987
    PubMed
    Summary
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    Occupational exposure in rubber tyre processing may cause acute lung function decline over an eight-hour shift. Long-term exposure did not show significant chronic obstructive pulmonary disease, but further research is needed.

    Area of Science:

    • Occupational Health
    • Pulmonary Medicine
    • Industrial Hygiene

    Background:

    • Rubber tyre manufacturing involves potential exposure to harmful respirable materials in processing, curing, and talc areas.
    • Occupational health studies are crucial for understanding the impact of airborne contaminants in industrial settings.

    Purpose of the Study:

    • To assess acute changes in lung function over a working shift in rubber tyre processing workers.
    • To investigate potential chronic effects of occupational airborne contaminants on lung function.

    Main Methods:

    • Ventilatory function tests (FVC, FEV1, FEF25-75%) were conducted at the beginning and end of work shifts.
    • Study included the entire workforce in the processing area of a rubber tyre manufacturing plant.
    • Data analyzed for acute changes within shifts and chronic effects based on exposure duration and smoking status.

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    Main Results:

    • No evidence of chronic obstructive pulmonary disease was found; most workers showed no significant decline in FEV1 over shifts.
    • A decrease in lung function tests was observed during each shift, with the smallest decrease in the first shift.
    • Smokers generally had lower pulmonary function than non-smokers, with a significant difference in FEF25-75%.

    Conclusions:

    • Results suggest acute adverse effects on lung function occur during an eight-hour work shift in rubber tyre processing.
    • Long-term exposure did not lead to significant chronic lung disease in the studied population.
    • Further research is required to determine if acute lung function changes are due to chemical stimulation or irritant receptors.