Not Just Dust: Crystalline Silica Dangers in the Workplace

Crystalline silica is a common mineral found in the earth's crust. Sand, stone, concrete and mortar contain crystalline silica. Glass, pottery, ceramics, bricks and artificial stone are also made with crystalline silica. Crushing, drilling or cutting these minerals creates a superfine dust that people breathe into their lungs.

Characterization of Silica Exposure during …

Silica, also known as silicon dioxide (SiO 2), is a colorless, white chemical compound made of common elements which naturally occur in the earth's crust.Silicon dioxide is the main component of more than …

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Respirable crystalline silica is created during processes like the dry cutting or dry grinding of stone. Workers who inhale these small crystalline silica particles are at increased risk of developing serious silica-related diseases—including Silicosis, an incurable lung disease that can lead to disability and death.

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Silica—Cutting and grinding concrete

you've stopped working with silica. • More and more studies are finding that silica exposure also causes lung cancer. Most concrete and masonry products contain high amounts of silica. When you cut or grind these products, you are being exposed to silica if measures are not taken. Although most diseases associated with silica

Good Practice Guide

particles of silica, which is known as respirable crystalline silica dust. It should be noted that fabrication of any natural stone product, quartz and granite, also produces dust containing fine particles of silica. Respirable dust is that fraction that penetrates to the deep lung where gas exchange takes place.

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What You Can Do To Help Reduce Silica Dust Hazards

Activities such as abrasive blasting with silica sand, sawing brick or concrete, sanding or drilling into concrete walls, grinding mortar, manufacturing brick, concrete blocks, stone countertops, or ceramic products, and cutting or crushing stone can result in worker exposures to respirable crystalline silica dust.

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Let's Talk Silica Dust

Engineered stone is ground stone such as crystalline silica and combined with resin. The crystalline silica content in stone bench tops can vary widely depending on the type of stone used. Engineered stone bench tops can contain up to 95 per cent crystalline silica. Natural stone such as granite may contain from 20 to 60 per cent.

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high amounts of silica dust when they cut, sanded, ground, or polished stone that contained silica. Similar lung problems could happen to your company's workers if silica dust levels are too high. There are two new Cal/OSHA silica standards that apply to fabrication shops and construction job sites where stone products are installed. In

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Background: Silicosis is a progressive and irreversible disease primarily caused by exposure to crystalline silica dust and, to a lesser extent, cigarette smoking. However, further research is needed to …

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- Crystalline silica and silicosis | Safe Work Australia

Crystalline silica is found in sand, stone, concrete and mortar. ... drilling, grinding, sawing, polishing, quarrying and tunnelling natural stone or man-made products that contain crystalline silica. Because the particles generated are so tiny, RCS can be breathed in and can penetrate deep into the lungs where they can cause irreversible …

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of common natural and engineered stones. Note that silica/quartz content will vary among stone varieties, and the exact content can be determined by petrographic and X-ray diffraction analysis on each rock. Stone Average % Silica Engineered stone ≥93 Quartzite 95 Quartzitic sandstone 90 Sandstone 60 Granite 10 - 45 Slate Varies Soapstone Varies

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