The hazard to human health from a pesticide depends on its toxicity and the which of the following?

• A. Correlation index
• B. Length of exposure
• C. Route of exposure
• D. Potential flammability

Answer: (B)

Hazard to human health from a pesticide comes from the combination of how toxic the chemical is and how long a person is exposed to it. Toxicity tells you how harmful the chemical could be if contact occurs, but the total dose the body receives depends on exposure duration. The longer you’re exposed, the more of the chemical can be absorbed, increasing the risk of adverse effects. The other options don’t fit as the primary factor in this context: correlation index isn’t a standard measure in pesticide health risk, and flammability concerns fire risk rather than direct health hazard. Route of exposure matters for how the toxin enters the body, but the duration of exposure is the key factor that scales the hazard when toxicity is fixed. For example, a highly toxic pesticide can pose a greater health hazard with prolonged exposure than with a brief contact, even if the toxicity rating is the same.