Where It Comes From
Spraying on farms, turf, and rights‑of‑way; it moves with spray drift and runoff, and is mobile in soil, so it can reach surface and groundwater [1][2].
How You Are Exposed
Breathing spray or vapors near applications, skin contact with treated plants/soil, swallowing residues on food or in drinking water; highest exposures are in workers who mix, load, or apply it [1][2].
Why It Matters
Can cause eye/skin irritation and nausea/vomiting if swallowed; high‑dose animal studies show liver and body‑weight changes. EPA classifies dicamba as “not likely to be carcinogenic to humans” [1][2].
Who Is at Risk
Farmworkers and applicators; people living or working close to sprayed areas; children and pets on recently treated lawns; individuals with sensitive skin or respiratory conditions may be more reactive to irritants [1][3].
How to Lower Your Exposure
Follow posted notices and re‑entry intervals; stay away and close windows during/after spraying; wash produce; keep kids/pets off treated areas until dry; remove shoes at the door. Workers should use label‑required PPE and drift‑reduction practices [1][3].
References
- [1]U.S. EPA. Dicamba: Human Health Risk Assessment for Registration Review (2016).
- [2]U.S. EPA. Reregistration Eligibility Decision (RED) for Dicamba (2006).
- [3]U.S. EPA. Dicamba: Interim Registration Review Decision (2020).