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Nitrate Quickview (CASRN 14797-55-8)

Health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several Program Offices, Regional Offices, and the Office of Research and Development.

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Status of Data for Nitrate

File First On-Line: 01/31/1987; Last Significant Revision: 05/01/1991

Category (section)
Status
Last Revised
Oral RfD Assessment On-line 10/01/1991
Inhalation RfC Assessment No data
Carcinogenicity Assessment No data
Synonyms
  • 14797-55-8
  • Nitrate
  • Nitric acid, ion(1-)
Nitrate Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Critical Effect
Point of Departure*
UF RfD
Early clinical signs of methemoglobinemia in excess of 10% (0-3 months old infants formula) NOAEL : 1.6 mg/kg-day 1 1.6 mg/kg-day

* The Point of Departure listed serves as a basis from which the Oral RfD was derived. See Discussion of Conversion Factors and Assumptions for more details.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Not Assessed under the IRIS Program.

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Carcinogenicity Assessment for Lifetime Exposure

Quantitative Estimate of Carcinogenic Risk from Oral Exposure

  • Not Assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure

  • Not Assessed under the IRIS Program.

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