What are common routes of pesticide exposure?

• A. Dermal contact, inhalation, and ingestion
• B. Visual exposure
• C. Hearing exposure
• D. Thermal exposure

Answer: (A)

The main idea is how pesticides can enter the body. Pesticides are typically absorbed through three routes: through the skin (dermal contact), by breathing them in (inhalation), and by swallowing (ingestion). Dermal exposure includes skin and eye contact, which is why protective clothing and goggles are emphasized to keep pesticides off the skin and out of the eyes. Inhalation exposure occurs when vapors or aerosols are breathed in, so good ventilation and, if needed, a respirator help reduce this risk. Ingestion exposure happens if contaminated hands or food/water are swallowed, so washing hands and avoiding eating or drinking during handling are crucial.

Visual exposure, hearing exposure, and thermal exposure aren’t routes by which a pesticide enters the body. Eye irritation can occur but is considered part of dermal/ocular exposure rather than a separate entry route; hearing and heat/cold exposure don’t describe how pesticides are absorbed.