Definition: The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed)
NIM; no qualif; coord NIM with specific drug or substance (IM without qualif); DF: MPEL
Other names Maximum Permissible Exposure Level; Maximum Allowable Concentrations; MPELs; Concentrations, Maximum Allowable; Concentration, Maximum Allowable; Allowable Concentrations, Maximum; Allowable Concentration, Maximum; Maximum Permissible Exposure Concentration; MPEL
