In toxicology, the median lethal dose, LD50 (abbreviation for " lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a given …

Aug 28, 2025 · LC stands for "Lethal Concentration". LC values usually refer to the concentration of a chemical in air but in environmental studies, it can also mean the concentration of a …

The concentration of a material in air which, on the basis of laboratory tests, is expected to kill 50% of a group of test animals when administered as a single exposure (usually 1 or 4 hours).

Another common term is Lethal Concentration 50 (LC50), which describes the amount of chemical inhaled by test animals that causes death in 50% of test animals used during a toxicity test …

Oct 28, 2025 · Learn what is lethal concentration 50 (LC50), a key measure of acute toxicity for chemicals in the air or water. Understand its use in pharmacology and risk assessment.

Jun 11, 2025 · Toxicology is a complex and multifaceted field that deals with the study of the adverse effects of chemicals on living organisms. One of the key metrics used in toxicology to …

LC50, or Lethal Concentration 50%, is a key measure used in toxicology that represents the concentration of a substance in the environment that is lethal to 50% of a test population, …

LC50, or lethal concentration 50, is defined as the concentration of a substance in the air or environment that will cause the death of 50% of a test population.

Oct 31, 2025 · LC50 means “Lethal Concentration, 50%.” It’s used to measure how much concentration of a substance in air or water is needed to kill 50% of exposed organisms within …

An LC50 value is the concentration of a material in air that will kill 50% of the test subjects (animals, typically mice or rats) when administered as a single exposure (typically 1 or 4 hours).