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Computation of lethal concentrations
Marine Pollution Bulletin, 1974Abstract As they are normally determined, lethal concentrations of toxins to particular organisms are given within very wide limits. It is possible, however, to test the homogeneity of the population being sampled and derive an accurate value for the lethal concentration, together with confidence limits of that value.
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A simple R-based function to estimate lethal concentrations
Marine Environmental Research, 2013Every year thousands of new substances are synthetized and marketed. Either by regulatory demands or scientific purposes, these substances should all be tested. The determination of lethal concentration (LC) in a given population after toxicity testing in the laboratory is still the best way to establish and compare toxicity. In this technical note, we
Antonio Guilherme Pacheco +1 more
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Chemosphere, 1998
The internal lethal concentration (ILC) and internal lethal volume fraction (ILVF) of a series of chlorobenzenes with mosquito fish (Gambusia affinis) were measured by a semistatic test approach in closed jars. Their variation with exposure times were also investigated with different aqueous chemical concentrations and different exposure periods, the ...
G, Sripongpun, D W, Hawker, D W, Connell
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The internal lethal concentration (ILC) and internal lethal volume fraction (ILVF) of a series of chlorobenzenes with mosquito fish (Gambusia affinis) were measured by a semistatic test approach in closed jars. Their variation with exposure times were also investigated with different aqueous chemical concentrations and different exposure periods, the ...
G, Sripongpun, D W, Hawker, D W, Connell
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Environmental Science and Pollution Research, 2016
Concern about leakage of carbon dioxide (CO2) from deep-sea storage in geological reservoirs is increasing because of its possible adverse effects on marine organisms locally or at nearby coastal areas both in sediment and water column. In the present study, we examined how elevated CO2 affects various intertidal epibenthic (benthic copepod ...
Changkeun, Lee +7 more
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Concern about leakage of carbon dioxide (CO2) from deep-sea storage in geological reservoirs is increasing because of its possible adverse effects on marine organisms locally or at nearby coastal areas both in sediment and water column. In the present study, we examined how elevated CO2 affects various intertidal epibenthic (benthic copepod ...
Changkeun, Lee +7 more
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Lethal Dose Versus Lethal Concentration as Indicator of Contaminant Toxicity to Fish
1984Median lethal dose determinations by intraperitoneal injection (IPLD50) provide a rapid and reliable indication of the lethal effects of chemicals on fish. The IPLD50s are correlated with oral lethal dose (OILD50) as well as aqueous lethal concentration (LC50), the traditional measure of toxicity.
Peter V. Hodson +2 more
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Lethal Brain Concentrations of Nicotine in Mice of Different Ages
Acta Pharmacologica et Toxicologica, 1970Albino mice aged 3 days, 12 days and 35 days, were injected intraperitoneally with lethal doses of14C‐nicotine. At death the concentrations of nicotine in the brain and blood were measured. Significant age dependent differences between lethal brain and blood concentrations and latent period before death occurred were found.
T, Stålhandske, P, Slanina
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Interactive toxicity of Ni, Zn, Cu, and Cd on Daphnia magna at lethal and sub-lethal concentrations
Journal of Hazardous Materials, 2017The toxicity of metal mixtures is currently of particular interest among aquatic toxicologists. To provide insight into whether the interaction of multiple metals is similar at different biological levels, the survival and feeding behavior of Daphnia magna were studied following exposure to four metals (Cd, Cu, Ni, Zn) and their binary and quaternary ...
Ebrahim, Lari +3 more
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Listeria monocytogenes’ Step-Like Response to Sub-Lethal Concentrations of Nisin
Probiotics and Antimicrobial Proteins, 2009Microbial safety of food products is often accomplished by the formulation of food-grade preservatives into the product. Because of the growing consumer demand for natural substances (including preservatives) in the composition of consumed foods, there is also a growing interest in the natural antimicrobial nisin, which has generally recognized as safe
Paul, Takhistov +2 more
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Minimum Lethal Concentrations, Symptomatology, and Pathology of Phosgene
1923Abstract : The minimum lethal concentration of phosgene for dogs by inhalation in a gas-air mixture is reported. Exposure to phosgene causes irritation of the exposed mucous surfaces leading to lachrymation, salivation, and increased nasal secretion.
M. C. Witherspoon, G. C. Armstrong
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The effect of lethal electrical shock on postmortem serum myoglobin concentrations
Forensic Science International, 1999Postmortem serum myoglobin concentrations in blood from the femoral vein (peripheral withdrawal) and the heart (central withdrawal) of nine electrical fatalities were compared with those of 74 individuals who had died of other causes. Independent of the cause of death or topographical site, serum myoglobin concentrations rose dramatically with the ...
A, Fieguth +3 more
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