an estimate of daily exposure of a human being to a chemical (in mg/kg/day) that is likely to be without an appreciable risk of adverse noncancerous effects over a specified duration of exposure.
An estimate of daily human exposure to a dose of radiation or a chemical that is likely to be without an appreciable risk of adverse noncancerous effects over a specified duration of exposure.
An estimate of daily human exposure - by a specified route and length of time -- to a dose of chemical that is likely to be without a measurable risk of adverse, noncancerous effects. An MRL should not be used as a predictor of adverse health effects.
An amount of chemical that gets into the body (i.e., dose) below which health effects are not expected. MRLs are derived by ATSDR for acute, intermediate, and chronic duration exposures by the inhalation and oral routes.
A minimal risk level is an estimate of daily human exposure to a substance that is unlikely to have an appreciable risk of adverse noncancer health effects over a specified duration of exposure. MRLs are determined when reliable and sufficient data exist to identify the target organs of effect or the most sensitive health effects associated with a specific chemical for a specific duration by a given route of exposure. MRLs are based on noncancer health effects only. MRLs can be derived for acute, intermediate, and chronic duration exposures by the inhalation and oral routes.
An estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse noncancer health effects over a specified duration of exposure. Minimal risk levels are developed by the Agency for Toxic Substances and Disease Registry.
An MRL is defined as an estimate of daily human exposure to a substance that is likely to be without an appreciable risk of adverse effects (noncancer) over a specified duration of exposure. MRLs are derived when reliable and sufficient data exist to identify the target organ(s) of effect or the most sensitive health effects(s) for a specific duration via a given route of exposure. MRLs are based on noncancer health effects only. MRLs can be derived for acute, intermediate, and chronic duration exposures by the inhalation and oral routes.
Minimal Risk Levels (MRLs) are levels of chemical exposure below which non-cancer effects are not expected. MRLs are derived by the Agency for Toxic Substances and Disease Registry. An MRL is derived by dividing a LOAEL or NOAEL by "safety factors" to account for uncertainty and provide added health protection.
An estimate of daily human exposure to a chemical likely to be without appreciable risk of harmful effects (non cancerous) over a specified duration of exposure. MRLs are based on human and animal studies and are reported for acute (less than or equal to 14 days), intermediate (15-364 days), and chronic (greater than or equal to 365 days) exposures. If an individual's daily exposure is below the MRL, adverse health effects are not expected.
An ATSDR estimate of daily human exposure to a hazardous substance at or below which that substance is unlikely to pose a measurable risk of harmful (adverse), noncancerous effects. MRLs are calculated for a route of exposure (inhalation or oral) over a specified time period (acute, intermediate, or chronic). MRLs should not be used as predictors of harmful (adverse) health effects (see reference dose).