What category is defined as highly toxic with an oral lethal dose of a few drops to a teaspoonful?

• A. Category I
• B. Category II
• C. Category III
• D. Category IV

Answer: (A)

The correct category is defined based on the level of toxicity of a pesticide. Category I signifies highly toxic substances, where the oral lethal dose can be as little as a few drops to a teaspoonful for an average adult. This level indicates a significant health risk, requiring extreme care in handling and application. Pesticides classified in this category typically include those known to cause severe health effects if ingested, highlighting the importance of strict adherence to safety protocols when working with such products.

The other categories represent progressively less toxic substances, with Category II being moderately toxic, Category III being slightly toxic, and Category IV being the least toxic among the classifications. Understanding these categories is crucial for ensuring safety and proper handling of pesticides in practice.