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Respirable crystalline silica particles are produced during many work tasks, including sandblasting, mining, rock drilling, quarrying, brick cutting, glass manufacturing, tunnelling, foundry work, stone working, ceramic .

Silica is an important material for use as a refractory in the production of glass. There are essentially two types of silica commonly used in glass refractories. The first is crystallised silica, which is composed of pure crystalline quartz. This material is crushed, graded and pressed into bricks.

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occupational exposure to crystalline silica and its pulmonary effects . pulmonary functional disorders among workers of a cement industry in Saveh, Iran. Therefore, control of workers' exposure to crystalline silica, especially in units with highest level of include crusher, raw mill, kiln, cement mill and loading.

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Silica is a natural substance found in concrete, bricks, rocks, stone, sand and clay. Silica dust is created when materials containing silica .

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NIOSH recommends the use of halffacepiece particulate respirators with N95 or better filters for airborne exposures to crystalline silica at concentrations less than or equal to mg/ m3 [NIOSH 2008].

On March 25, 2016, the Occupational Safety and Health Administration (OSHA) issued a final rule regarding respirable crystalline silica. Under this rule, employers will be subject to new standards for protecting workers.

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OSHA area offices are prepared for implementation and will be seeking companies to fine with a standard packet of four citations: Silica Control, Written Silica Plan, Medical Surveillance, and Training.

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Generating respirable crystalline silica dust can lead to irreversible damage for those who are exposed. For this reason, OSHA is implementing the Respirable Crystalline Standard for Construction, 29 CRF Atomized misting cannons, like the DustBoss pictured above, are an effective way to suppress silica dust.

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