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A hundred times smaller than a grain of sand, silica dust can lead to lung cancer and silicosis, an irreversible scarring and stiffening of the lungs, among other conditions, according to the ...
The cutting, breaking, crushing, drilling, grinding, or abrasive blasting of these materials may produce fine to ultra fine airborne silica dust. Silica occurs in three forms: crystalline, microcrystalline (or cryptocrystalline) and amorphous (non-crystalline). "Free" silica is composed of pure silicon dioxide, not combined with other elements ...
Silicosis, a disease caused by silica dust produced when workers cut and grind engineered stone, is afflicting workers. What consumers can do about it.
It is used to make items like glass, stoneware, earthenware, blocks, and manufactured stone. Respirable crystalline silica – microscopic particles of silica can be become airborne and inhaled when cutting, sawing, grinding, or drilling rock or concrete. Silica is used for foundry molds and cores, so exposure can occur when grinding on castings.
Researchers estimated that 100,000 workers in the U.S. are potentially at risk of silicosis due to exposure to silica dust. ... It is time for urgent action to stop these dangerous working ...
Pneumoconiosis is the general term for a class of interstitial lung disease where inhalation of dust (for example, ash dust, lead particles, pollen grains etc) has caused interstitial fibrosis. [ 1 ] [ 2 ] The three most common types are asbestosis , silicosis , and coal miner's lung . [ 3 ]
The Labor Department began studying silica and its impact on workers’ health nearly a century ago, but the focus on stopping exposure in the workplace largely bypassed coal miners. Instead, regulations centered on coal dust , a separate hazard created by crushing or pulverizing coal rock that also contributes to black lung.
On a national level, the Occupational Safety and Health Administration already requires fabrication shops to use “dust controls” to limit workers’ exposure to silica dust, such as saws with ...
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