Which signal word is associated with very low oral LD 50 values in pesticides?

The signal word "DANGER POISON" is specifically associated with very low oral LD50 values in pesticides, indicating a high level of toxicity. The LD50 value represents the dose of a substance that is lethal to 50% of a test population, typically measured in milligrams per kilogram of body weight. When a pesticide has a low oral LD50, it means that only a small amount of the substance is required to cause significant harm or death, emphasizing the acute toxicity of that chemical.

The use of "DANGER POISON" as a signal word alerts users to the immediate and serious risk presented by the product, emphasizing that it should be handled with extreme care and that there is a significant risk of poisoning if ingested. This wording reinforces the need for proper storage, usage, and disposal practices to protect humans and animals from harm.

In contrast, the other signal words indicate different levels of toxicity or hazard. "WARNING" suggests a moderate level of toxicity, "DANGER" indicates high toxicity but does not specify it as poison, and "CAUTION" is used for chemicals with lower toxicity levels. Each of these terms provides important information regarding safety concerns, but "DANGER POISON" specifically conveys the highest risk associated with highly toxic