A pesticide that is of low toxicity can present a hazard when:

• A. It is used in a concentrated form.
• B. It is rapidly absorbed or inhaled.
• C. It is used frequently by untrained or careless persons, who become exposed to it.
• D. It is properly labeled and used.

Answer: (C)

Hazard from a pesticide depends on both how toxic it is and how much exposure people have to it. A product with low toxicity has a smaller inherent danger, but that danger can show up if people are exposed to it. When it’s used frequently by untrained or careless individuals, the likelihood and amount of exposure rise—spills, improper mixing, skipping safety steps, or not wearing protection can all lead to meaningful internal doses and potential harm. Proper labeling and correct use minimize exposure, keeping hazard low. While concentrated forms or routes like inhalation can increase exposure and hazard, and quick, correct use by trained handlers reduces risk, the scenario described points to exposure caused by untrained or careless use as the key factor.