Which two routes of entry are likely to be the most important to a pesticide applicator?

The focus on dermal and inhalation routes of entry is crucial for a pesticide applicator because these routes represent the most common pathways for pesticide exposure during application.

The dermal route involves the absorption of chemicals through the skin, which can occur when an applicator handles pesticides without appropriate personal protective equipment (PPE) or when there is accidental spillage on the skin. Given the nature of pesticide formulations, many can easily penetrate the skin barrier, leading to systemic effects or localized reactions. Therefore, understanding how to minimize dermal exposure—such as using gloves, long sleeves, and protective clothing—is vital to ensure safety.

The inhalation route refers to the uptake of pesticide particles or vapors into the respiratory system. During application, especially when using aerosolized products or when wind disperses processed chemicals, the risk of inhaling harmful substances increases. Protective measures like respirators or ensuring adequate ventilation in enclosed spaces are essential to mitigate this risk.

While oral exposure is a possible route, it is less relevant to applicators in a professional setting, as this would typically occur through accidental ingestion rather than direct application. Focusing on dermal and inhalation routes emphasizes the importance of proper handling techniques and safety protocols that are critical in protecting applicators from