Ammonia

CASRN 7664-41-7

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (10 pp, 309 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (10 pp, 309 K) last updated: 09/20/2016

RfC (mg/m3) System Basis PoD Composite UF Confidence
5 x10-1 Respiratory Decreased lung function and respiratory symptoms NOAEL (ADJ): 4.9
mg/m3
10 Medium

Cancer Assessment


Weight of Evidence for Cancer (PDF) (10 pp, 309 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (10 pp, 309 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (10 pp, 309 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 07/2012
4 Peer Review Draft 08/2013 07/2014
7 Post Final Assessment 09/2016

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

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