Which chemical exposure is most strongly associated with berylliosis among tech and aerospace workers?

• A. Lead
• B. Beryllium
• C. Mercury
• D. Arsenic

Answer: (B)

Inhaled beryllium dust or fumes can trigger a chronic granulomatous lung disease called berylliosis, which is a classic concern for tech and aerospace workers who handle beryllium-containing alloys and components. The disease arises from an immune-mediated reaction in the lungs, leading to noncaseating granulomas that resemble sarcoidosis. Clinically, it often presents with cough and progressive shortness of breath, and imaging typically shows diffuse nodular infiltrates. The link to beryllium exposure in these workplaces makes it the strongest association for this condition. The other substances listed cause different toxic effects—lead affects the nervous system and blood (anemia), mercury damages the kidneys and nervous system, and arsenic causes skin changes and other toxicities—so they don’t explain berylliosis.