> Hoy said that long before stonecutters started struggling to breathe, the sheer amount of silica in many kinds of engineered stone — upwards of 90% — should have made it obvious that the material was risky to cut and grind, especially in workplaces without sophisticated measures to control dust.(1)
> But scientists and regulators have grown concerned about whether recommended strategies such as wet cutting, proper ventilation and wearing respirator masks can do enough to protect workers from dust so high in silica. Cal/OSHA officials have generally described silicosis as preventable, but also caution that with 93% silica(2) content, “safe use of engineered stone may not be possible” even with proper workplace practices.(1)
> Hoy said that long before stonecutters started struggling to breathe, the sheer amount of silica in many kinds of engineered stone — upwards of 90% — should have made it obvious that the material was risky to cut and grind, especially in workplaces without sophisticated measures to control dust.(1)
> But scientists and regulators have grown concerned about whether recommended strategies such as wet cutting, proper ventilation and wearing respirator masks can do enough to protect workers from dust so high in silica. Cal/OSHA officials have generally described silicosis as preventable, but also caution that with 93% silica(2) content, “safe use of engineered stone may not be possible” even with proper workplace practices.(1)
(1) https://www.latimes.com/california/story/2023-11-19/why-cali...
2. https://www.osha.gov/sites/default/files/publications/OSHA37...