Minnesota Pesticide Applicator Practice Test

What term describes the ability of small amounts of pesticide to cause injury or illness due to repeated exposure?

1. Acute toxicity

2. Chronic toxicity

3. Dermal toxicity

4. Systemic toxicity

The correct answer is: Chronic toxicity

Chronic toxicity refers to the adverse effects that can arise from long-term exposure to small amounts of a substance, such as a pesticide. It is particularly relevant when the exposure occurs repeatedly over an extended period, leading to cumulative effects in the body. Unlike acute toxicity, which results from a single large exposure causing immediate harm, chronic toxicity builds over time, often affecting organs or systems gradually and potentially resulting in serious health issues. Chronic toxicity is significant in situations where individuals may encounter pesticides regularly, whether through occupational exposure or pesticide residue in the environment. Understanding this term is crucial for safe pesticide application and risk assessment, as it emphasizes the importance of monitoring not only the immediate effects of pesticides but also the long-term health implications that might not be immediately apparent.