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Minimal risk level (mrl)
Toxic Substances Glossary |
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].
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Nivel mínimo de riesgo, испанский
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Measurable, английский
Inhalation, английский
- With respect to radiation protection , inhalation describes one possible mode by which radioactive materials may enter the body and therefore present an internal radiation hazard. inhalation can occur where the radioactive material is airborne, volatile o
- The act of breathing. a hazardous substance can enter the body this way [see route of exposure].
- 1. the act of breathing in. opposite exhalation 2. the action of breathing in a medicinal substance as part of a treatment
- A type of drug abuse in which someone inhales the toxic fumes given off by particular types of volatile chemical. also called glue-sniffing ‘…deaths among teenagers caused by solvent abuse have reached record levels’ [health visitor]
Intermediate, английский
- Between two others.
- Промежуточный
- Промежуточное звено
- Chemical term for an igneous rock containing 54 to 62% silica and usually
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Background level, английский
- An average or expected amount of a substance or radioactive material in a specific environment, or typical amounts of substances that occur naturally in an environment.
- Фоновый уровень (загрязнения и т. п.) (экол.)
Toxicological profile, английский
An atsdr document that examines, summarizes, and interprets information about a hazardous substance to determine harmful levels of exposure and associated health effects. a toxicological profile also identifies significant gaps in knowledge on the substance and describes areas where further research is needed.
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