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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

LC50

Median lethal concentration, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

LC50

[Fm. lethal concentration]
An abbreviation for the concentration of a toxin that will kill 50% of organisms exposed to it.
Medical Dictionary, © 2009 Farlex and Partners
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The impact of the 96-hour exposure to the LC50 Cu+Zn ions mixture on the abundance of bacteria in digestive tract of rainbow trout (Oncorhynchus mykiss) Concentration in portion of equitoxic 96-hour LC50 mixture
Impact of copper and zinc mixture on bacterial flora of digestive tract of rainbow trout (Oncorhynchus mykiss)
LC50 or EC50 value of copper for marine invertebrates.
Temporal fluctuation of metals in seawater of the Piedras River estuary and the effects of copper on Venerupis decussata larvae
Each fish species was tested, separately, for acute toxicity tests (96-hr LC50 and lethal concentrations) against each metal mixture at constant hardness, pH and water temperature.
ACUTE TOXICITY OF METALS MIXTURES FOR FISH, Catla catla, Labeo rohita AND Cirrhina mrigala
LC50): jautriausios buvo lervos, maziau jautrios--suaugusios zuvys ir ikrai (Kazlauskiene, Vosyliene 2008).
Research into the effect of heavy metals and their binary mixture on the cardio-respiratory system of fish larvae/Sunkiuju metalu ir ju binarinio misinio poveikio zuvu kardiorespiracinei sistemai ankstyvojoje ontogenezeje tyrimai
Cyfluthrin, the active ingredient in Baythroid[R] and Tempo[R], also is extremely toxic to aquatic invertebrates with a similar LC50 value of 0.14 [micro]g/L for D.
Pesticide usage on the Southern High Plains and acute toxicity of four chemicals to the fairy shrimp Thamnocephalus platyurus (Crustacea: Anostraca)
Values were derived using probit analysis Species LC50, 24h (g [1.sup.-1] of NaCl) Brachionus calyciflorus 3.75 [+ or -] 0.04 B.
Combined effect of concentrations of algal food (Chlorella vulgaris) and salt (sodium chloride) on the population growth of Brachionus calyciflorus and Brachionus patulus (Rotifera)
Moreover, the LC50 of ethanol and acetic acid were measured on each line at each generation.
Adaptation to fermenting resources in Drosophila melanogaster: ethanol and acetic acid tolerances share a common genetic basis
Furthermore, LC50 values were also confirmed the higher toxicity of A.
Evaluation of Synthetic Insecticides and Essential Oils for the Management of Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)
The compounds treated to the 4th instar larva of Aedes albopictus after 24h, the LC50 values of rotenone was 5.12 mg/L, while the LC50 of compound A, C, D, I, J, and K were 46.09 mg/L, 12.91 mg/L, 38.24 mg/L, 66.82 mg/L, 61.44 mg/L and 34.17 mg/L, respectively.
Synthesis and Insecticidal Activity of Rotenone Analogues
While fraction 6 (isolated from the acetone originated fraction) was near to fraction 1 in its mortal effect with LC50 values of 403 and 292 ug/ml after 24 and 48 hours exposure, respectively without significant differences between each other, fraction 2 (isolated from the solvent system I) significantly exceeded the previously mentioned two fractions (1 and 6) exhibiting mortality percents increasingly with increasing the tested concentration to complete lethality of the treated population at 2000 ug/ml achieving 321 and 166.8 ug/ml LC50 values after 24 and 48 hours, respectively.
INSECTICIDAL AND PHYTOCIDAL EFFECTS OF SIMMONDSIA CHINENSIS CONSTITUENTS
Determination of the median lethal concentration (LC50) The LC50 was determined using probit analysis method described by Finney [6].
PHYTOCHEMICAL SCREENING, CYTOTOXICITY, ANTIOXIDANT, AND ANTHELMINTIC PROPERTY OF THE VARIOUS EXTRACTS FROM Crescentia cujete Linn. FRUIT
Acute toxicity of Cadmium (Cd) using 96 h LC50 and lethal concentrations was determined for the three fish species viz.
Acute Toxicity of Cadmium and its Bio-accumulation in the Carnivorous Fish Species Channa marulius, Mystus seenghala and Wallago attu

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