LC50 tai LC 50 on annos, joka tappaa puolet koe-eläimistä tietyn ajan kestävän kokeen aikana. LC50 on lyhenne englannin kielen sanoista "Lethal Concentration, 50%" eli letaaliannos, 50%. Arvoa käytetään yleensä hengityksen kautta vaikuttavista kaasuista, sumuista tai aerosoleista.

May 10, 2024 · Why are LD 50 and LC 50 values a measure of acute toxicity? How are LD/LC 50 tests done? Which LD 50 information is the most important for occupational health and safety purposes?

In toxicology, the median lethal dose, LD 50 (abbreviation for "lethal dose, 50%"), LC 50 (lethal concentration, 50%) or LCt 50 is a toxic unit that measures the lethal dose of a given substance. [1] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test duration.

Jun 17, 2016 · LD50 and LC50. LD50 (Lethal Dose 50%) is a statistically derived dose at which 50% of the animals will be expected to die. For inhalation toxicity, air concentrations are used for exposure values. Thus, the LC50 (Lethal Concentration 50%) is used.

An LC50 value is the concentration of a material in air that will kill 50% of the test subjects (animals, typically mice or rats) when administered as a single exposure (typically 1 or 4 hours).

Jul 11, 2022 · Lethal concentration 50 (LC50) is the concentration at which an airborne chemical will kill 50% of laboratory animals exposed to it under proper testing conditions. A chemical’s LC50 value is often used as a representation of its acute toxicity.

LC50-arvo on materiaalin pitoisuus ilmassa, joka tappaa 50 % koehenkilöistä (eläimet, tyypillisesti hiiret tai rotat), kun sitä annetaan kerta-altistuksena (tyypillisesti 1 tai 4 tuntia).

Ekotoksikologisilla testeillä määritetään yleensä näytteen LC50 –arvo. LC50 on annos, joka tappaa puolet koe-eliöistä kokeen aikana. Testeillä voidaan selvittää myös pitoisuus, jolla ei myrkyllisyysvaikutusta ole havaittavissa.

An LC50 value is the concentration of a material in air that will kill 50% of the test subjects (animals, typically mice or rats) when administered as a single exposure (typically 1 or 4 hours).

Apr 24, 2017 · According to the U.S. Environmental Protection Agency, LC50 is defined as the concentration of a chemical in air or water which is expected to cause death in 50 percent of test animals living in that air or water.