Editing Lethal dose (section)

{{Short description|Sufficient amount to kill}}
In [[toxicology]], the '''lethal dose''' ('''LD''') is an indication of the lethal [[toxicity]] of a given substance or type of [[radiation]]. Because resistance varies from one individual to another, the "lethal dose" represents a dose (usually recorded as dose per kilogram of subject body weight) at which a given ''percentage'' of subjects will die. The lethal concentration is a lethal dose measurement used for gases or particulates. The LD may be based on the [[standard person]] concept, a theoretical individual that has perfectly "normal" characteristics, and thus not apply to all sub-populations.