Question

What value of LD50 indicates low toxicity?

Answer 1

The LD50 is a standardized measure for expressing and comparing the toxicity of chemicals. A low LD50 value indicates high toxicity, while a high LD50 value indicates low toxicity.

Step-by-step explanation:

The LD50 is a standardized measure for expressing and comparing the toxicity of chemicals. LD50 stands for 'lethal dose-50%' and refers to the dose that kills half of the animals tested. In the context of toxicity, a low LD50 value indicates high toxicity, while a high LD50 value indicates low toxicity.

For example, if we compare two insecticides, and Insecticide A has an LD50 of 10 mg/kg and Insecticide B has an LD50 of 1,000 mg/kg, we can conclude that Insecticide A is more toxic than Insecticide B because it requires a smaller dose to cause lethality in the tested animals.