Washington State Department Of Agriculture (WSDA) MPC Practice Exam

What is chronic toxicity?

Acute toxicity Inhalation risk Short-term exposure effects Long-term exposure effects

Correct Answer:

Long-term exposure effects

Explanation:

Chronic toxicity is the health impact that results from repeated or prolonged exposure to a chemical, typically over months or years, often at low doses that can accumulate in the body. This differs from acute toxicity, where effects show up quickly after a single exposure or a short-term exposure. Chronic effects may develop gradually and aren’t always obvious right away, and they can involve organs such as the liver or kidneys, the nervous system, or even cancer risk depending on the substance. In pesticide safety contexts, chronic toxicity is a key concern because workers may accumulate exposure over time even when daily amounts seem small. So the correct idea is long-term exposure effects.

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