Wyoming Pesticide Applicator Certification Practice Test

What does dermal toxicity refer to in relation to pesticides?

1. The inflammation, itching, irritation, or occurrence of a rash after exposure to a chemical

2. The width of the area covered by one sweep of an airplane, ground sprayer, spreader, or duster

3. Any detectable change in an organism resulting from activities of a pathogen or other pest

4. The ability of a pesticide or toxic chemical to poison people or animals by contact with the skin

The correct answer is: The ability of a pesticide or toxic chemical to poison people or animals by contact with the skin

Dermal toxicity refers to the ability of a pesticide or toxic chemical to poison people or animals by skin contact. This means that when pesticides come into contact with the skin, they have the potential to be absorbed and cause harm either immediately or over time. Understanding dermal toxicity is crucial for pesticide applicators to ensure they are taking the necessary precautions to protect themselves and others from harmful effects. Options A, B, and C are incorrect: A. This choice refers to symptoms of skin irritation or allergic reactions that may occur after exposure to a chemical, which is not the same as dermal toxicity. B. This choice describes the term "swath," which is the width covered by a pesticide application, and is not related to dermal toxicity. C. This choice defines the general concept of "biological effects" resulting from pests, pathogens, or other organisms and is not specific to the toxicity of pesticides on the skin.