The statement 'The signal word on a pesticide label is based only on the active ingredient and does not include hazards posed by other ingredients' is:

• A. True
• B. False
• C. It depends on the product
• D. Not enough information

Answer: (B)

The signal word on a pesticide label reflects the hazards of the finished product, not just the active ingredient. In forming the label’s warning, regulators look at the acute toxicity and other hazard data for the product as it is packaged and sold, which includes all ingredients—active ingredient plus solvents, carriers, surfactants, and other inert components. Those additional ingredients can alter how the product is absorbed, causes irritation, or presents inhalation risks, so the overall hazard can be greater or different than that of the active ingredient alone. That’s why the statement is false: the label communicates hazards for the complete formulation, not just the active ingredient. It doesn’t depend on the product in a way that would change this rule, and there isn’t insufficient information, because the finished formulation determines the signal word.