What health hazards must employees understand regarding pesticides?

• A. The color of the label
• B. The routes by which pesticides can enter the body and the signs and symptoms of exposure-related injury or illness
• C. Acute and chronic effects, delayed effects, and sensitization as identified in pesticide product labeling
• D. Only chronic effects

Answer: (C)

Understanding the full range of health hazards pesticides can cause is what this item tests. Pesticide labels summarize hazard information workers must know, including acute toxicity from a single exposure, chronic effects from long-term exposure, any delayed effects that may develop after exposure, and the potential for sensitization, where repeat exposures can trigger allergic reactions. This comprehensive view guides appropriate protective equipment, safe handling practices, and how to respond to exposures. The other options are incomplete: label color does not convey hazards, knowing only routes and signs of exposure is helpful but doesn’t cover all possible health effects, and focusing only on chronic effects misses acute, delayed, and sensitization risks.