What is the LD50 range for substances labeled with 'Danger'?

The correct answer indicates that substances labeled with "Danger" have an LD50 range of 0-50. LD50, or lethal dose for 50% of a population, is a standard measure used in toxicology to assess the toxicity of a substance. A lower LD50 value signifies higher toxicity; thus, a range of 0-50 means that relatively small amounts of the substance can result in lethal effects for half of the test population.

In the context of safety and regulatory classifications, substances categorized as "Danger" are considered highly toxic and pose significant risk to human health or the environment if mishandled. This classification is crucial for users, as it highlights the need for strict adherence to safety protocols and protective measures when handling such substances.

The other ranges (50-500, 500-5000, and 5000+) represent progressively less toxic substances, fitting classifications such as "Warning" or "Caution," which indicate moderate to low toxicity. Understanding these classifications is essential for applicators to ensure safe and effective pest control practices.