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OSHA Expert
Industrial Hygiene Consultant
Preventing Silicosis & Deaths in Construction Workers – 1
Types of Silica
Crystalline silica may be of several distinct types. Quartz, a form of silica and the most common mineral in the earth’s crust, is associated with many types of rock. Other types of silica include cristobalite and tridymite.
Potential for Exposure During Construction
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Preventing Silicosis & Deaths in Construction Workers – 3
CURRENT EXPOSURE LIMITS
The current Occupational Safety and Health Administration (OSHA) permissible exposure limit (PEL) for respirable dust containing crystalline silica (quartz) for the construction industry is measured by millions of particles per cubic foot (mppcf) and is calculated using the following formula view article >
