First off, here's what you need to know.
The Occupational Safety and Health Administration (OSHA) has issued a final rule to curb lung cancer, silicosis, chronic obstructive pulmonary disease and kidney disease in America's workers by limiting their exposure to respirable crystalline silica.
As this relates to the concrete polishing industry, the exposure limits of silica found in concrete, mortar, overlay products, terrazzo, stone, brick, grout, stucco, thinset, rock, block, self-levelers, color hardener, etc. must be 50 micrograms per cubic meter of air, averaged over an 8-hour shift.
For our industry, on June 23, 2017 you must be in compliance with this regulation.
OSHA estimates that the rule will save over 600 lives and prevent more than 900 new cases of silicosis each year, once its effects are fully realized. The Final Rule is projected to provide net benefits of about $7.7 billion, annually.