Controlling silica exposures in construction while operating handheld masonry saws silica is a mineral that is found in stone soil and sand it is also found in concrete brick mortar and other construction materials breathing in silica dust can cause silicosis a serious lung disease using a handheld masonry saw to cut concrete. Controlling silica exposures in construction 5 overview this guidance document addresses the control of employee exposures to respirable dust containing crystalline silica which is known to cause silicosis a serious lung disease as well as increase the risk of lung cancer and other systemic diseases this docu. back to silica controlling silica exposure using table 1 oshas new rule on respirable crystalline silica mandates reducing exposures through engineering and work practice controls additionally it gives contractors flexibility by providing three different compliance options. Controlling silica exposures in construction while operating jackhammers silica is a mineral that is found in stone soil and sand it is a common component of concrete brick mortar and other construction materials breathing in silica dust can cause silicosis a serious lung disease using a jackhammer to chip or break up concrete stone . Protect workers from silica exposures above the pel and o provide respirators to workers when dust controls and safer work methods cannot limit exposures to the pel what else does the standard require regardless of which exposure control method is used all construction employers covered by the standard are required to
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