What signal word on a pesticide label indicates it is highly toxic?

The term "Danger" on a pesticide label indicates that the product is highly toxic. This signal word is part of the labeling system used to communicate the level of acute toxicity associated with the pesticide. When you see "Danger," it typically signifies that even small amounts of the pesticide can pose significant health risks to humans and animals. This label serves as a critical warning for users to take extra precautions when handling or applying the pesticide, as it can lead to severe harm or even death if ingested, inhaled, or absorbed through the skin.

In contrast, "Caution" indicates a lower level of toxicity, suggesting that the product may cause some degree of risk but is not as dangerous as those marked with "Danger." "Warning" signals a moderate level of toxicity, meaning one should still be careful while handling the product, but it is not as severe as "Danger." Lastly, "Notice" is not a signal word related to toxicity levels; instead, it often communicates general information without indicating the risk associated with the pesticide. Understanding these labels is crucial for safe pesticide use and ensuring the protection of human health and the environment.