Ammonia
CASRN 7664-41-7 | DTXSID0023872
Noncancer Assessment
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
| System | RfC (mg/m3) | Basis | PoD | Composite UF | Confidence |
|---|---|---|---|---|---|
| Respiratory | 5 x 10-1 | 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.
- Human Health Benchmarks for Pesticides (HHBP). This database provides human health benchmarks for pesticides that may be present in drinking water.
- Office of Pesticide Programs Pesticide Chemical Search. This database provides links to health effects information and registration status for pesticides.
- Chemistry Dashboard. This database provides information on chemical structures, experimental and predicted physicochemical, and toxicity data.
Note: The ammonia (re)assessment was suspended in Dec 2018, but may be restarted as Agency priorities change.
Assessment Manager(s): Andrew Kraft (kraft.andrew@epa.gov), Dahnish Shams (shams.dahnish@epa.gov)
| Step | Assessment Materials Released to the Public | Release Date | Public Meeting Date |
|---|---|---|---|
| 1 | Problem Formulation Materials | 04/2018 | 05/2018 |
| Suspended | 12/2018 |
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Critical Effect Systems
Chemical Structure for
Ammonia
