LC50


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median lethal concentration

The average concentration of a chemical or mixture in air as a gas, vapour, mist, fume or dust capable of killing 1/2 of the test animals exposed by inhalation under specific conditions. Median lethal concentration (LC50) is often expressed in ppm or mg/m3.

LC50

Median lethal concentration, see there.

LC50

[Fm. lethal concentration]
An abbreviation for the concentration of a toxin that will kill 50% of organisms exposed to it.
References in periodicals archive ?
The dominating heterotrophic bacteria were observed among bacterial communities of the digestive tract of control fish (Figs 1-4) in the experiment of 96-hour exposure of rainbow trout to different parts of LC50 of Cu + Zn ions mixture.
Regarding overall sensitivity of three fish species, Labeo rohita showed significantly least sensitivity to metal mixtures with a mean LC50 and lethal concentrations of 81.
Taciau veikiant vaivorykstinio upetakio jauniklius 0,16 mg/l Cu (0,25 LC50 suaugusiu zuvu) koncentracija, kvepavimo daznis reiksmingai padidejo nuo 70,0 [+ or -] 2,6 iki 83,0 [+ or -] 3,4 krt.
The LC50 for each pesticide was determined from the curve of percentage germination against dose.
Certain measurements were also found to exceed the values for EC50 (the concentration required to have a defined effect on 50 percent of a study population) or LC50 (i.
The LC50 value obtained through sigmoid curve was 36 [micro]g/L and linear curve was found to be 34 [micro]g/L.
Palabras clave: Toxicidad aguda, cobre, LC50, postlarvas de Cryphiops caementarius.