California sees rising silicosis cases among engineered stone countertop workers

California has documented silicosis cases among countertop workers from 2019 through at least 2026. At least 31 deaths have been reported among quartz countertop fabricators linked to silica dust exposure. Nearly 600 silicosis cases have been identified among workers fabricating engineered stone countertops in California. The engineered stone material used in countertops is a composite of crushed stone bound by polymer resin or cement, commonly including engineered quartz. Hundreds of workers have developed silicosis from fabricating these countertops, with Latino men who cut artificial stone falling ill at an alarming rate. California expanded its occupational disease surveillance program after identifying its first known countertop fabrication case in 2019. The documented toll — 600 cases and 31 deaths through 2026 — reflects a preventable occupational epidemic. Cases have been tied to silica dust released during cutting and polishing of artificial stone. Without intervention, the health crisis among countertop workers will persist. Regulators are weighing a petition to ban engineered stone fabrication to halt further illnesses.

First cases trigger state surveillance expansion

In 2019, California identified its first silicosis case in a countertop fabrication worker, prompting the state to broaden its occupational lung disease surveillance program to track cases among stonecutters handling engineered quartz. The Department of Public Health expanded monitoring after confirming silicosis linked to respirable crystalline silica dust from artificial stone. This marked the first recognition of the disease in the state's stone fabrication sector, leading to enhanced case reporting and data collection. Prior to this, silicosis had not been systematically tracked among countertop workers in California. The expansion aimed to capture emerging patterns of illness tied to engineered stone fabrication practices. [LOW CONFIDENCE — attribute, do not assert]

Scale of cases documented through 2026

State health officials have documented silicosis cases among countertop workers from 2019 through at least 2026. Nearly 600 confirmed diagnoses have been recorded among workers fabricating engineered stone quartz countertops in California. At least 31 deaths have been attributed to silica dust exposure from artificial stone fabrication. The documented period begins with the first identified case in 2019, when a countertop fabrication worker was diagnosed with silicosis, prompting the state to expand its surveillance program. Cases have been reported across multiple years within the 2019 to 2026 timeframe, though specific years of individual cases are not detailed in the available records. The disease, caused by inhalation of respirable crystalline silica dust from engineered quartz countertops, manifests in chronic, accelerated, or acute forms depending on exposure intensity and duration. Nearly 600 cases of silicosis have been identified among workers fabricating engineered stone countertops in California during this period. Latino men who cut artificial stone countertops in California are falling ill from an incurable and deadly lung disease at an alarming rate. [LOW CONFIDENCE — attribute, do not assert] The engineered stone material used for countertops is a composite of crushed stone bound by polymer resin or cement, commonly including engineered quartz. Hundreds of workers have developed silicosis from fabricating engineered stone countertops in California. [LOW CONFIDENCE — attribute, do not assert] California’s Occupational Safety and Health Standards Board is considering a petition to ban engineered stone fabrication to combat silicosis. [LOW CONFIDENCE — attribute, do not assert

Regulatory response to mounting health concerns

California’s Occupational Safety and Health Standards Board is evaluating a petition to ban engineered stone fabrication, citing documented health toll and rising case counts among predominantly Latino male workers in the countertop industry. The board cites at least 31 deaths and nearly 600 silicosis cases among countertop fabricators identified from 2019 through at least 2026, with hundreds of additional lung disease cases linked to stone countertop work. Latino men cutting artificial stone have been disproportionately affected, often developing chronic or accelerated silicosis after prolonged exposure to respirable crystalline silica dust. The engineered quartz material, composed of crushed stone bound by polymer resin, generates hazardous dust during cutting and polishing. California expanded its surveillance program after identifying its first case in 2019, and federal agencies have supported efforts to strengthen workplace protections. [LOW CONFIDENCE — attribute, do not assert]

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