Wyoming Pesticide Applicator Certification 2026 – 400 Free Practice Questions to Pass the Exam

Acute toxicity refers to the health effects that occur immediately or shortly after exposure to a single dose of a pesticide. Chronic toxicity, on the other hand, refers to the long-term health effects that occur after repeated or prolonged exposure to a pesticide. LD50 and LC50 are both measures of toxicity, but they specify the amount of a substance (LD50) or concentration of a substance (LC50) that is lethal to 50% of a population. They are not specific to pesticide exposure. Therefore, the most accurate term for the injury or illness from a single pesticide exposure is acute toxicity.