LC50 definition

LC50 means the concentration of toxicant (e.g., effluent) which is lethal to 50 percent of the test organisms exposed in the time period prescribed by the test.

LC50 means the median lethal concentration and is a statistically or graphically estimated concentration that is expected to be lethal to fifty per cent of a group of organisms under specified conditions.

LC50 means a statistically or graphically estimated concentration that is expected to be lethal to 50% of a group of organisms under specified conditions.

Examples of LC50 in a sentence

• Toxicity to fish: LC50:> 100-1000 mg / l, Exposure time: 96 h Species: FishToxicity to daphnia and other invertebrates that live in water: EC50:> 100 to 1000 mg / l, exposure time: 48 hSpecies: Daphnia magna, the value is estimated from tests on similar products.Toxicity to algae: EC50:> 100 to 1000 mg / l, Exposure time: 72 hSpecies: algae, the value is estimated from tests on similar products.

• No toxicity to reproductionAcute oral toxicity: LD50:> 2000 - 5000 mg / kg Species: rat Acute inhalation toxicity: LC50:> 20 mg / lAcute dermal toxicity: LD50:> 2000 - 5000 mg / kg Skin: Result: Not irritating.Eye irritation: Result: Causes serious eye irritation.

• Rabbit): >20000 mg/kg (CHP) (Ethanol)• Acute inhalation toxicity: LC50 (inhalative.

• LC50 Median Lethal Concentration (Determined at 48 Hours) Methods of Estimation:• Probit Method• Spearman-Karber• Trimmed Spearman-Karber• Graphical See the flow chart in Figure 6 on p.

• Acute toxic unit (TUa) means 100/LC50 where the LC50 is determined from a whole effluent toxicity (WET) test which produces a result that is statistically or graphically estimated to be lethal to 50% of the test organisms.

More Definitions of LC50

LC50 means the statistical estimate of the concentration of a substance which kills 50 percent of the bioassay test organisms under test conditions specified or approved by the Department.

LC50 means a concentration of a substance (usually in air) that is estimated to produce death in 50 per cent of a population of experimental animals on inhalation for a short period of time.

LC50 means the concentration of a substance, mixture of substances, or discharge which causes mortality to fifty percent of the test organisms in an acute toxicity test.

LC50 means the point estimate of the concentration of a toxic substance, wastewater effluent or other aqueous mixture which is lethal to 50% of the exposed organisms in a given time period, when compared to an appropriate control.

LC50 means the concentration of a toxicant at which lethality occurs to 50 percent of the test organisms during a specified exposure time period.

LC50 means that concentration of a toxic substance that is lethal or immobilizing to 50 percent

LC50 means the median lethal con- centration, i.e., that concentration of a chemical in air or water killing 50 per- cent of the test batch of organisms within a particular period of exposure (which shall be stated).