N-Nitrosodiphenylamine
Health Effects
EPA's Integrated Risk Information System classifies N-Nitrosodiphenylamine as: B2; probable human carcinogen. EPA's stated basis: "Increased incidence of bladder tumors in male and female rats and reticulum cell sarcomas in mice, and structural relationship to carcinogenic nitrosamines" EPA has not set a federal drinking-water limit (MCL or MCLG) for N-Nitrosodiphenylamine; 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
N-Nitrosodiphenylamine is classified as a SVOCs contaminant.
Related SVOCs Contaminants
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