Which signal word is used for pesticides that are highly toxic and may cause death from small exposure?

• A. Danger-Poison
• B. Danger
• C. Warning
• D. Caution

Answer: (A)

Signal words on pesticide labels convey how dangerous a product is and what precautions are needed. The most severe label is Danger-Poison, which means the pesticide is extremely toxic and a tiny exposure could be fatal. Seeing this word pair tells you to take the strictest precautions: use full protective gear, avoid any skin contact or inhalation, work in well-ventilated areas, prevent spills and drift, and seek urgent medical help if exposure occurs. The other terms indicate progressively lower levels of hazard—Danger without the Poisson tag signals high toxicity but not necessarily fatal from a small exposure, Warning signals moderate hazard, and Caution indicates only a slight hazard. So, for a product that could cause death from small exposure, the Danger-Poison label is the best, because it communicates the highest risk and the strongest safety requirements.