minimal risk level


Also found in: Acronyms.

minimal risk level

An Agency for Toxic Substances and Disease Registry (ATSDR) estimate of daily human exposure to a hazardous substance at or below which that substance is unlikely to pose a measurable risk of adverse, noncancerous effects. Minimal risk levels are calculated over a specified time period (acute, intermediate or chronic), and are derived when reliable and sufficient data exist to identify the target organ(s) of effect or the most sensitive health effect(s) for a specific duration via a given route of exposure (e.g., inhalation or oral).
References in periodicals archive ?
Utilizing uncertainty factors in minimal risk levels derivation.
EPA, 1989b); the Minimal Risk Level (ATSDR, 1992; ATSDR, 1993); and the lethal dose for humans (ATSDR, 1993).
Full browser ?