California health experts are pushing a sweeping response to a growing occupational health crisis: a potential ban on engineered stone countertops. The proposal is driven by a surge in cases of silicosis among workers who cut, grind, and polish the material. What began as investigative reporting in late 2022 has since evolved into a statewide public health alarm, with confirmed cases rising from 69 to 542 in just over a year. The workers most affected are often young, immigrant men employed in countertop fabrication shops, where daily exposure to silica dust has proven deadly.
Silicosis is caused by inhaling microscopic particles of crystalline silica, a mineral that is a primary component of engineered stone. These countertops, marketed as durable and affordable alternatives to granite or marble, contain more than 90% crystalline silica. When slabs are cut or polished, fine dust is released into the air and inhaled, embedding in the lungs and causing irreversible damage. There is no cure. Even the most aggressive treatment, such as a double-lung transplant, offers limited extension of life.
In response to the escalating crisis, the Western Occupational and Environmental Medical Association submitted a petition asking Cal/OSHA’s Standards Board “to prohibit all fabrication and installation tasks on engineered stone that contains more than 1% crystalline silica”. If adopted, California would become the first state in the nation to prohibit the material, following the lead of Australia, which implemented a similar ban in 2024. Supporters argue that removing the deadly material from the equation is the only effective way to prevent further illness and death, while industry representatives contend that existing safety standards are sufficient to protect workers, if properly followed.
In 2023 Cal/OSHA adopted emergency protections, which they later made permanent, requiring dust suppression and enhanced safety protocols. Even while limited by a staffing crisis, enforcement by Cal/OSHA has led to more than 140 inspections, uncovering over 580 violations and resulting in $1.8 million in penalties. Yet many health experts and advocates assert that these enforcement measures fall short, as evidenced by the dramatic rise in the number of silicosis cases. Cal/OSHA received video testimony from fabrication workers suffering from silicosis at its meeting last Thursday in Santa Rosa and is not expected to vote on a ban any sooner than its May 21 meeting in Los Angeles.
The surge of severe and often fatal silicosis cases is growing into a wave of high-value, complex claims. These cases raise issues around employer compliance, third-party liability, and the adequacy of existing workplace protections. If a ban is enacted, it may shift the litigation landscape further toward product liability and expose longstanding enforcement gaps that allowed unsafe practices to persist. Even without a ban, the data emerging from this crisis will likely strengthen arguments and highlight systemic failures of protecting workers from one of the most devastating occupational illnesses seen in California in decades.
