# 2,4-Dinitrotoluene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds For 2,4-Dinitrotoluene (P), cas registry number is 121142; water + organism criterion (µg/l) is 0.049; organism only criterion (µg/l) is 1.7, verified against its source on 2026-08-17. - **Pollutant name:** 2,4-Dinitrotoluene (P) _(verified: appears in the quote below)_ - **CAS Registry Number:** 121142 _(verified: appears in the quote below)_ - **Water + Organism criterion (µg/L):** 0.049 _(verified: appears in the quote below)_ - **Organism Only criterion (µg/L):** 1.7 _(verified: appears in the quote below)_ ## What the source says > 2,4-Dinitrotoluene (P) | 121142 | 0.049 | 1.7 | 2015 ## 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/).