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Silica Exposure Control Plan Purdue University
The Silica Exposure Control Plan applies to all Purdue University employees who are expected to be exposed to respirable crystalline silica as outlined in section 4; or through other means, which are determined by Radiological and Environmental Management (REM) or their supervisor.
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Silica, Crystalline (Respirable Size)
RoC Background Document for Silica, Crystalline (Respirable Size) Physical and Chemical Properties Crystalline Silica (CS) is the scientific name for a group of minerals composed of silicon (Si) and oxygen (O) ( DOI 1992). The word crystalline implies that silicon and oxygen are arranged in a three dimensional repeating pattern.
Frequently Asked Questions Silica Safe
The respirable crystalline silica standard applies to all occupational exposures to respirable crystalline silica in construction work, except where employee exposures will remain below 25 micrograms per cubic meter of air (µg/m3) as an 8hour timeweighted average (TWA) under any foreseeable conditions.
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OSHA Rule to Reduce Exposure to Respirable Silica New Pig
In this article, we'll focus on crystalline silica exposure as amorphous silica hasn't been linked to adverse health effects. In 1971, the Occupational Safety and Health Administration (OSHA) recognized respirable crystalline silica as a health hazard and established a permissible exposure limit (PEL) for it.
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cement coarse aggregate natural gravel crushed limestone or other hard rock and fine aggregate generally quartz sand but limestone sand and other crushed rock ... Natural Sand or Gravel may contain trace amounts of free crystalline silica Prolonged exposure to respirable free silica can aggravate other lung conditions and cause silicosis ...
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