Florida Pesticide Applicator Practice Exam

Question: 1 / 400

What does LD refer to in pesticide toxicity testing?

Long duration

Liquid dosage

Local delivery

Lethal dose

The term LD in pesticide toxicity testing stands for Lethal Dose. This measurement is crucial in toxicology as it refers to the quantity of a substance, such as a pesticide, required to cause death in a specific proportion of test organisms. It is typically expressed as LD50, indicating the dose that kills 50% of the test population within a specified period. This value helps in assessing the relative toxicity of different substances and in establishing safety protocols for pesticide applications. Understanding the LD is vital for both regulatory compliance and ensuring the safety of humans, animals, and the environment when using pesticides.

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