Linuron
Health Effects
EPA's Integrated Risk Information System classifies Linuron as: C; possible human carcinogen. EPA's stated basis: "Limited evidence indicated linuron produced increases in both testicular hyperplasia and adenomas in male rats in three separate studies. Hepatocellular adenomas were observed in female mice in a single study at the highest dose group tested; the tumors were benign and showed no progression toward malignancy." EPA has not set a federal drinking-water limit (MCL or MCLG) for Linuron; 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)
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Contaminant Type
Linuron is classified as a Herbicides contaminant.
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