median lethal concentration


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Related to median lethal concentration: LC50

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.
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Hence the aims of this study are to determine the median lethal concentration ([LC.
Median lethal concentration at 24 hours 48 hours 72 hours and 96 hours were observed in Catla catla as 9.
The present studies were designed to investigate the acute toxicity and the median lethal concentration (LC50) of four pesticides, two organophosphates and two carbamates, on Cirrhinus mrigala fingerlings.
Median Lethal concentration and application factor: The number of fish dead for commercial formulation of glyphosate (Forceup) of doses 108, 216, 324, 432 and 540 mgl-1 were examined depending on the duration of exposure (24, 48, 72 and 96 h) in Tilapia zillii (Table 2).
The median lethal concentration (LC50) value for 3rd instar larvae was 1.
Furthermore, commercially available programs using PNN methodology have recently become available for the estimation of several toxicologic endpoints, such as fathead minnow 96-hr median lethal concentrations (L[C.