2,4-D sodium salt

Spraying of 2,4‑D (including its salts/esters) in agriculture, turf, forestry, and aquatic weed control; it can move with runoff to streams or groundwater [1][2].

Skin contact with treated grass/plants; breathing spray drift during mixing/applying; swallowing residues in food or drinking water; take‑home dust on shoes/clothes; workers can have higher exposures [1][2].

Short‑term exposure can cause eye/skin irritation, nausea, vomiting, and dizziness; very high doses can affect muscles and nerves [1]. Cancer evidence is mixed: IARC says “possibly carcinogenic to humans” (Group 2B); EPA judges it not likely carcinogenic at typical exposures [2][3].

Pesticide applicators, farm and lawn‑care workers; people near treated fields/lawns; children and pets on recently treated areas; private well users in farming areas [1][2].

Follow label directions and re‑entry times; keep kids/pets off until dry; prevent drift; wear gloves, long sleeves, and eye protection when applying; remove shoes at the door; wash produce; consider testing/treating well water near heavy use [1][2].