Hundreds of Silicosis Cases Diagnosed Among Quartz Countertop Workers in California: Report

The California Department of Public Health published research in NEJM Evidence documenting the scope of silicosis among workers in the quartz countertop industry. The study identified nearly 600 cases of severe lung damage since 2019, with the disease striking primarily young workers who had relatively brief exposure to silica dust. The findings include more than 30 worker deaths and dozens of cases requiring lung transplant surgery.

Silicosis develops when workers inhale fine silica particles released during the cutting, grinding, and fabrication of engineered stone countertops. The particles become lodged deep in the lungs, causing inflammation and permanent scarring. In severe cases, the disease progresses to respiratory failure. The California Department of Public Health report also found that silica dust exposure may increase risk of autoimmune disorders and tuberculosis.

The state responded by approving an emergency rule earlier in 2026 limiting crystalline silica content in quartz countertops to 1 percent. Multiple lawsuits have been filed on behalf of affected workers alleging that employers knew of dangerous silica dust exposure levels but failed to provide adequate protective equipment or dust suppression measures.

This is a curated brief from the PlaintiffWire news desk. Read the original report at AboutLawsuits.