What is Permissible Exposure Limit (PEL)
A Permissible Exposure Limit (PEL) is the maximum concentration of a hazardous substance (chemical, dust, fume, mist, or physical agent) to which a worker may be exposed during a specified period of time without suffering adverse health effects. Typically, in U.S. occupational safety law (OSHA), PELs are expressed as time-weighted averages (TWAs) over an 8-hour … Read more