Dichlorvos
Health Effects
EPA's Integrated Risk Information System classifies Dichlorvos as: B2; probable human carcinogen. EPA's stated basis: "Significant increases in forestomach tumors in female and male B6C3F1 mice and leukemias and pancreatic acinar adenomas in Fischer 344 rats. Supporting evidence included observation of tumors at other sites in the rat and observation of mutagenicity for both dichlorvos and a major metabolite dichloroacetaldehyde. A structurally related material, dichloropropene, also induces forestomach tumors in rodents." EPA has not set a federal drinking-water limit (MCL or MCLG) for Dichlorvos; IRIS assesses a chemical's toxicity, not the amount permitted in tap water.
Source: EPA IRIS — Integrated Risk Information System (IRIS) (retrieved 2026-07-28)
Is your Dichlorvos result safe? Get a free reading
Upload your tap water report (PDF or a photo) and we'll email you a plain-English explanation of each contaminant and level — free. Educational only, no medical claims.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testHow to Remove It
Water filters certified under the following NSF standards are effective at removing Dichlorvos:
Filter recommendations for this contaminant are being updated.
Get Dichlorvos Updates
Research updates, regulation changes, and filter recommendations — in your inbox.
Free forever. Unsubscribe anytime. We never share your email.
Contaminant Type
Dichlorvos is classified as a Pesticides contaminant.
Related Pesticides Contaminants
Check Your Water
Find out if Dichlorvos is in your tap water.
Search cities for Dichlorvos dataTest Your Water for This Contaminant
Public water reports may not test frequently enough or at your specific tap. Professional home testing provides current, location-specific results.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.