Iowa Pesticide Applicator Practice Exam

Which exposure route involves the skin as the primary entry point for pesticides?

1. Ocular exposure

2. Oral exposure

3. Dermal exposure

4. Respiratory exposure

The correct answer is: Dermal exposure

Dermal exposure refers specifically to the entry of pesticides through the skin. This route of exposure is significant because the skin can absorb certain chemicals, allowing them to enter the bloodstream and potentially cause adverse health effects. Many pesticides are formulated to be applied in a way that allows them to penetrate the skin, making it crucial for pesticide applicators to wear appropriate personal protective equipment, such as gloves and long sleeves, to minimize skin contact. In contrast, ocular exposure involves the eyes, which is not relevant when considering the skin as the entry point. Oral exposure relates to ingestion, and respiratory exposure refers to inhalation of pesticides, neither of which focuses on the skin as the primary avenue for pesticide entry. Understanding these different routes of exposure highlights the importance of protective measures to prevent dermal exposure among those working with pesticides.