Which herbicide is associated with irritation of skin and mucous membranes and symptoms such as vomiting, headaches, diarrhea, and confusion?

• A. 2,4-D
• B. Atrazine
• C. Glyphosate
• D. Dicamba

Answer: (A)

Irritation of skin and mucous membranes, along with vomiting, headaches, diarrhea, and confusion, points to acute exposure effects seen with certain phenoxy herbicides. The herbicide in question is 2,4-D. It’s a commonly used phenoxy herbicide, and both skin contact and inhalation can cause irritation of the skin and mucous membranes. If it gets into the body, it can lead to systemic symptoms such as vomiting, diarrhea, headaches, and confusion due to its effects after absorption.

Other herbicides listed have different primary hazard profiles. They may irritate skin or eyes or cause GI upset, but the combination of mucous membrane irritation with CNS symptoms like confusion is most characteristic of 2,4-D exposure.