lowest-observed-adverse-effect level

lowest-observed-adverse-effect level

Toxicology The lowest concentration of a chemical in a study, or group of studies, that produces statistically or biologically significant ↑ in frequency or severity of adverse effects between the exposed population and an appropriate control. See Ames test. Cf No-observed-adverse-effect level.
References in periodicals archive ?
Environmental Protection Agency, which is based on a lowest-observed-adverse-effect level of 50 milligrams per kilogram per day.