What is often a common method of measuring acute toxicity besides examining LD50?

The common method of measuring acute toxicity, in addition to examining LD50, is LC50. This metric represents the lethal concentration of a substance that kills 50% of a test population, typically used for substances that are inhaled or absorbed through the skin. LC50 is particularly relevant for evaluating the acute toxicity of pesticides, including herbicides, in an aquatic environment or in air.

Using LC50 provides insights into how toxic a chemical is when organisms are exposed to it in concentrations, as opposed to a dose measured in LD50, which indicates the amount of substance harmful when ingested or injected. This makes LC50 an essential tool for risk assessment, environmental safety evaluations, and regulatory compliance in pesticide application.

The other options pertain to different measurements that are less commonly used or not standard indicators of acute toxicity in the same context as LD50 and LC50.