Glass Dust in Lungs: Risks, Symptoms & Prevention

Inhaled glass or silica dust can cause pneumoconiosis—a fibrotic lung disease often called "glass worker's lung" or silicosis when crystalline silica is involved.

Pathophysiology

Microscopic particles reach alveoli, where macrophages attempt to engulf them. Sharp particles kill macrophages, triggering chronic inflammation, fibroblast activation, and collagen deposition (fibrosis). This stiffens lungs, impairing gas exchange.

Symptoms

• Progressive dyspnea (shortness of breath)
• Chronic dry cough
• Wheezing, chest tightness
• Fatigue, reduced exercise tolerance
• Advanced: respiratory failure, cor pulmonale

At-Risk Occupations

Glassblowing, cutting, sandblasting, ceramics, construction, demolition, mining, foundry work.

Prevention

• Engineering controls: wet methods, local exhaust ventilation
• Administrative: job rotation, exposure monitoring
• PPE: N95 or P100 respirators; powered air-purifying respirators (PAPRs) for high exposure
• Medical surveillance: periodic spirometry and chest imaging

Treatment

No cure for established fibrosis. Management focuses on avoiding further exposure, bronchodilators, pulmonary rehab, oxygen therapy, and in end-stage disease, lung transplant evaluation.