What is the chemical hazard safety signal word indicating moderate toxicity and potential for acute illness?

The safety signal word indicating moderate toxicity and the potential for acute illness is “Warning.” In chemical safety labeling, different signal words convey the level of hazard associated with a substance.

"Warning" is used to indicate that a chemical poses a moderate threat, suggesting a certain degree of risk that can lead to acute illness upon exposure. This signal word is more serious than “Caution,” which indicates a lower level of toxicity but does not imply that immediate or severe effects are likely. On the other hand, “Danger” signals a high level of toxicity with a greater potential for serious harm or death. The term "Noxious" typically describes a substance that is harmful or destructive but is not a recognized signal word in the context of chemical hazard communication.

Understanding these distinctions is crucial for safe handling and awareness in environments where chemical exposure might occur.