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

The most important routes of entry for a pesticide applicator are dermal and inhalation. Dermal exposure happens when pesticides come into contact with the skin, which is a significant concern in applications where protective equipment may not fully cover exposed areas or when handlers have direct contact with treated surfaces. This can lead to absorption into the bloodstream, making it vital for applicators to implement proper safety measures.

Inhalation is equally critical, as pesticide aerosols or vapors can be easily breathed in during application, especially in enclosed or poorly ventilated areas. Respiratory exposure can quickly lead to acute or chronic health effects, depending on the toxicity of the pesticide used.

Other routes of entry, such as oral ingestion, are generally less common in professional pesticide applications, as proper handling and safety protocols help prevent accidental swallowing of pesticides. Therefore, dermal and inhalation routes are emphasized in training programs to reduce the risk of exposure and ensure the safety of pesticide applicators.