In toxicology, the<unk>  <unk>  is an indication of the<unk>  toxicity of a given substance or type of radiation. Because resistance varies from one individual to another, the<unk> " represents a dose (usually recorded as dose per kilogram of subject body weight) at which a given percentage of subjects will die. The<unk>  concentration is a<unk>  measurement used for gases or particulates. The<unk>  may be based on the standard person concept, a theoretical individual that has perfectly "normal" characteristics, and thus not apply to all sub-populations.
Lethal dose
Equivalent dose
Reference dose
Dose profile
Epidemic curve
Banana equivalent dose
Proximate
Effective dose 