Over 90% of all body exposures while spraying are due to which contact with the pesticide?

• A. Lungs
• B. Oral
• C. Ocular
• D. Dermal

Answer: (D)

The main concept here is how pesticides enter the body during spraying. The skin is the largest and most likely point of contact when you are spraying, as droplets and splashes readily land on exposed skin and clothing. The skin can absorb pesticide residues, so even small amounts that reach the skin can lead to significant exposure, especially with repeated or prolonged contact. Because skin contact covers a large surface area and is the primary route for pesticides to enter the body in this scenario, dermal exposure accounts for the vast majority of body exposure—over 90% in many cases. Inhalation and ingestion can contribute, but they’re less likely to produce the total body exposure seen from skin contact. That’s why protecting the skin with appropriate PPE and promptly washing exposed areas dramatically reduces overall exposure.