Ammonia

CASRN 7664-41-7

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (15 pp, 123 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (15 pp, 123 K) last updated: 05/01/1991

RfC (mg/m3) System Basis PoD Composite UF Confidence
1 x10-1 Respiratory Lack of evidence of decreased pulmonary function or changes in subjective symptomatology NOAEL (HEC): 2.3
mg/m3
30 Medium

Cancer Assessment


Weight of Evidence for Cancer (PDF) (15 pp, 123 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (15 pp, 123 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (15 pp, 123 K)

Not assessed under the IRIS Program.


Ammonia is being reassessed.

Assessment Manager(s): Audrey Galizia (galizia.audrey@epa.gov)

Step Assessment Materials Released to the Public Release Date Public Meeting Date
1 Problem Formulation Materials N/A N/A
1 Preliminary Assessment Materials N/A N/A
4 Public Comment Draft 06/2012 N/A
4 Peer Review Draft 08/2013 07/2014
7 Post Final Assessment TBD

Please note: Any future dates displayed under Release Date are estimates and subject to change.

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