# Nitrosamines — EPA national recommended water quality criteria for human health: pollutant concentration thresholds For Nitrosamines, cas registry number is —; water + organism criterion (µg/l) is 0.0008; organism only criterion (µg/l) is 1.24, verified against its source on 2026-08-17. - **Pollutant name:** Nitrosamines _(verified: appears in the quote below)_ - **CAS Registry Number:** — _(verified: appears in the quote below)_ - **Water + Organism criterion (µg/L):** 0.0008 _(verified: appears in the quote below)_ - **Organism Only criterion (µg/L):** 1.24 _(verified: appears in the quote below)_ ## What the source says > Nitrosamines | — | 0.0008 | 1.24 | 1980 ## Source - https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table Last verified: 2026-08-17. Review by: 2028-08-16. Part of [EPA national recommended water quality criteria for human health: pollutant concentration thresholds](https://referencesource.org/epa-water-quality-criteria-human-health/).