Overview
- A New England Journal of Medicine analysis and California’s public dashboard report roughly 592–631 confirmed silicosis cases in the state as of August 2026 with about three dozen deaths and 65 lung transplants.
- The disease is linked to breathing crystalline silica released when cutting and polishing engineered quartz countertops and is incurable but preventable with dust controls.
- Reported patients were unusually young for this illness with a median diagnosis age of 46 and 98% of cases occurring in Latino men, concentrated in areas such as the San Fernando Valley.
- California has tightened rules since 2023 and made silicosis reportable in June 2025 and Cal/OSHA voted in May 2026 to move toward halting certain engineered stone work, but inspections remain limited and many shops fail to meet standards.
- Public health experts warn the true number of sick workers is higher because screening and reporting are incomplete and the outbreak could drive policy changes similar to Australia’s 2024 engineered-stone ban and push the industry toward lower-risk materials.