The manuscript titled "Characterization of occupational and environmental exposures to crystalline silica and dust at demolition and crushing sites" is under preparation for submission to the Journal of Occupational and Environmental Hygiene.
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الحصول على السعرSilica dust exposure has been in the spotlight since the Occupational Safety and Health Administration (OSHA) ramped up regulations and significantly lowered the permissible exposure limits (PEL) for most constructionrelated activities last fall.
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الحصول على السعرWorkers are exposed to crystalline silica, or silica dust, when conducting activities such as sandblasting, sawing brick or concrete, sanding or drilling into concrete walls, grinding mortar, manufacturing brick, concrete blocks, stone countertops or ceramic products, hydraulic fracturing, foundry work and cutting or crushing stone.
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الحصول على السعرDrilling, crushing, cutting, chipping, breaking, sawing or polishing materials containing crystalline silica can create a large amount of respirable dust. These dust particles, mostly 10 microns in size and smaller, are too small to see, but can penetrate to the deepest part of the human lung when inhaled.
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