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Lung function impact from working in the pre-revolution Libyan quarry industry.

Marwan M Draid1, Khaled M Ben-Elhaj2, Ashraf M Ali3

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Libyan quarry workers experience significant lung function decline due to silica dust exposure. Even short-term exposure is harmful, impacting lung capacity and airflow, regardless of work duration.

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Area of Science:

  • Occupational Health
  • Pulmonology
  • Environmental Health

Background:

  • Quarry work, particularly with silica, poses risks to respiratory health.
  • Understanding the specific lung impacts on Libyan quarry workers is crucial for occupational safety.

Purpose of the Study:

  • To assess the lung function impairment in Libyan silica quarry workers.
  • To investigate if the duration of employment correlates with the severity of lung degradation.

Main Methods:

  • Compared spirometry results (Forced Vital Capacity, Forced Expiratory Volume at 1 second, Peak Expiratory Flow) between 83 silica quarry workers and 85 non-quarry worker controls in Libya.
  • Controlled for age, height, weight, and smoking status in the analysis.

Main Results:

  • Exposed workers showed significantly lower FVC, FEV1, and PEF compared to controls, even after adjustments.
  • Lung function reduction was not significantly associated with the number of years worked in the quarries.

Conclusions:

  • Exposure to quarry dust in Libya has a detrimental effect on lung function.
  • Any level of exposure appears harmful, indicating a need for stringent protective measures in the industry.