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2. Environmental impact of fracking in the United States

   en.wikipedia.org/wiki/Environmental_impact_of_f...

   In 2013 the United States the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH) released a hazard alert based on data collected by NIOSH that "workers may be exposed to dust with high levels of respirable crystalline silica (silicon dioxide) during hydraulic fracturing."

3. Silicosis - Wikipedia

   en.wikipedia.org/wiki/Silicosis

   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 ...

4. Safety data sheet - Wikipedia

   en.wikipedia.org/wiki/Safety_data_sheet

   An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.

5. US miners' union head calls House Republican effort to block ...

   www.aol.com/news/us-miners-union-head-calls...

   The black lung problem has only grown in recent years as miners dig through more layers of rock to get to less accessible coal, generating deadly silica dust in the process. Silica dust is 20 ...

6. Occupational dust exposure - Wikipedia

   en.wikipedia.org/wiki/Occupational_dust_exposure

   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.

7. Chemical hazard - Wikipedia

   en.wikipedia.org/wiki/Chemical_hazard

   A 2017 SBU report found evidence that workplace exposure to silica dust, engine exhaust or welding fumes is associated with heart disease. [3] Associations exist for exposure to arsenic, benzopyrenes, lead, dynamite, carbon disulfide, carbon monoxide, metalworking fluids and occupational exposure to tobacco smoke. [3]