What type of pesticide exposure occurs primarily through skin contact?

Dermal exposure is the correct choice because it refers specifically to the contact of pesticides with the skin. When handling or applying pesticides, if these chemicals come into direct contact with the skin surface, they can be absorbed into the body through the skin layers. This type of exposure is particularly relevant for individuals working with pesticides, as improper handling or lack of personal protective equipment can significantly increase the risk of adverse health effects due to direct skin contact.

Understanding the other types of exposure helps clarify the context. Inhalation exposure involves breathing in pesticide particles or vapors, which can occur in poorly ventilated areas. Oral exposure refers to ingesting the pesticide, either accidentally or through contaminated hands or food, and is a different route of entry into the body. Environmental exposure generally refers to residue in the surroundings, such as soil or water, and does not pertain to direct contact with the skin. Thus, dermal exposure is uniquely characterized by its primary route involving skin contact with pesticides.