New research documents growing silicosis epidemic among quartz countertop workers
A new report documenting California's rapidly growing silicosis epidemic among quartz countertop workers underscores the urgent need for a national effort focused on stronger surveillance, earlier diagnosis and policy interventions to protect workers from a preventable yet often fatal occupational lung disease.
A new study reveals an alarming surge in silicosis cases among workers fabricating quartz countertops in California. The Centers for Disease Control and Prevention (CDC) and California Department of Public Health (CDPH) estimate that 592 cases have been diagnosed between January 2019 and June 2026, with 65 workers requiring lung transplants and 31 fatalities.
Silicosis, an incurable lung disease caused by inhaling fine silica dust, poses a significant risk to those who cut, grind, and polish engineered stone countertops, which are predominantly made of over 90% crystalline silica. Despite the availability of safer alternatives, quartz countertops remain the most favored choice in the U.S. market.
David Michaels, a professor at George Washington University and former OSHA assistant secretary, emphasizes the urgent need for stronger surveillance, early diagnosis, and policy interventions to protect these workers. The report suggests that California's efforts have spurred regulatory action, but the actual number of cases may be far higher due to underdiagnosis or late detection.
The study calls for routine questioning of occupational exposures by healthcare providers, regular evaluation of quartz countertop fabrication workers for silicosis, and reporting diagnosed cases to public health authorities.
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