NURSING ANM AND GNM

Detailed explanation-1: -The Lethal Concentration 50 (LC50) is the concentration of a substance in water causing a death (50% of the tested population) to aquatic life. The EC50 and the LC50 are often used in ecotoxicology as an indicator of the toxicity of a compound to the environment.

Detailed explanation-2: -Fish. Acute toxicity to fish (96hrs, LC50 in mg/l): The acute toxicity is expressed as the median lethal concentration (LC 50) that is the concentration in water which kills 50% of a test batch of fish within a continuous period of exposure which is usually 96hrs.