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Ammonia Quickview (CASRN 7664-41-7)

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 Ammonia

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

Category (section)
Status
Last Revised
Oral RfD Assessment No data
Inhalation RfC Assessment On-line 05/01/1991
Carcinogenicity Assessment No data
Synonyms
  • 7664-41-7
  • Ammonia
  • Am-Fol
  • Ammonia gas
  • Ammonia solution, strong
  • Ammoniac [French]
  • Ammoniaca [Italian]
  • Ammoniak [German]
  • Amoniaco [Spanish]
  • more...
Ammonia Source Documents
Revision History
Date Section Description
04/01/1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this inforamation.
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Not Assessed under the IRIS Program.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Critical Effect
Point of Departure*
 UF MF RfC
Lack of evidence of decreased pulmonary function or changes in subjective symptomatology (other effect: Increased severity of rhinitis and pneumonia with respiratory lesions. ) NOAEL (HEC): 2.3 mg/m3 30 1 1x10-1 mg/m3

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

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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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