If It’s Silica… It’s Not Just Dust!
DISCLAIMER: The resources provided on this website contain useful technical information. However, since this website was developed, the Occupational Health Safety and Health Administration (OSHA) established a new Permissible Exposure Level (PEL) of 50 micrograms of respirable crystalline silica per cubic meter of air (μg/m3), averaged over an 8-hour workday, and there are now additional requirements under OSHA’s Respirable Crystalline Silica Standard for Construction.