Texas Pesticide Applicator Practice Exam

When considering pesticide exposure, what route is typically considered the least risky?

1. Dermal

2. Oral

3. Inhalation

4. Using PPE

The correct answer is: Using PPE

The route considered the least risky when it comes to pesticide exposure is the use of personal protective equipment (PPE). Using PPE minimizes the potential for exposure by creating a barrier between the pesticide and the individual. This might include gloves, masks, goggles, and protective clothing designed to protect the skin and respiratory system from pesticide contact. While dermal, oral, and inhalation exposures all pose significant risks, PPE effectively mitigates these risks by preventing direct contact with the chemicals. Dermal exposure can occur through skin contact, leading to potential absorption into the bloodstream. Oral exposure, which can happen from accidentally ingesting residues, is particularly dangerous due to the rapid absorption of pesticides in the gastrointestinal tract. Inhalation can lead to immediate effects since pesticides can be quickly absorbed through the lungs into the systemic circulation, often causing acute reactions. Therefore, the use of PPE is the best practice for reducing the risk associated with pesticide exposure, as it safeguards against all three exposure routes.