Where It Comes From
Veterinary pest-control products (collars, dusts, sprays) and use around animal housing; some agricultural uses persist [1][3].
How You Are Exposed
Touching treated collars or pets, indoor dust in homes with treated animals, applying products, or eating food with small residues [1][3].
Why It Matters
Overexposure can cause headache, nausea, dizziness, sweating, salivation, vomiting, or diarrhea; severe poisoning can lead to trouble breathing, weakness, or seizures. IARC lists a possible cancer risk [1][2].
Who Is at Risk
Young children in homes with treated pets; people who apply or handle these products (pet owners, groomers, veterinarians, farmworkers); those living near animal facilities where it’s used [1][3].
How to Lower Your Exposure
Consider non‑TCVP flea control (e.g., oral/topical meds from a vet); follow labels; keep children from touching collars; wash hands after contact; vacuum and wash pet bedding; wear protection when applying; wash produce [1][3].
References
- [1]ATSDR. ToxFAQs for Tetrachlorvinphos (TCVP). Agency for Toxic Substances and Disease Registry.
- [2]IARC. Some Organophosphate Insecticides and Herbicides. IARC Monographs, Vol. 112 (2015).
- [3]U.S. EPA. Tetrachlorvinphos (TCVP) — Registration Review and Human Health Risk Assessment. https://www.epa.gov/ingredients-used-pesticide-products/tetrachlorvinphos-tcvp