Ammonia
CASRN 7664-41-7
IRIS Assessment Plan for Ammonia and Ammonium Salts Noncancer Oral (Scoping and Problem Formulation Materials, Suspended)
Notice
Overview
Citation
U.S. EPA. IRIS Assessment Plan for Ammonia and Ammonium Salts Noncancer Oral (Scoping and Problem Formulation Materials, Suspended). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-18/041, 2018.
Background
Ammonia occurs naturally in air, soil, and water. Ammonia is also produced by humans and other animals as part of normal biological processes. Ammonia is used as an agricultural fertilizer and in many cleaning products. Exposure to ammonia occurs primarily through breathing air containing ammonia gas, and may also occur via diet, drinking water, or direct skin contact.
History/Chronology
Date | Description |
---|---|
Apr 2019 | EPA suspended the Ammonia and Ammonium Salts (noncancer oral exposure) assessment in fiscal year 2019. This assessment may be restarted as Agency priorities change. |
Apr 2018 | EPA released the IRIS Assessment Plan for Ammonia and Ammonium Salts (noncancer oral exposure) for a 30-day public comment period.[Federal Register Notice Apr 16, 2018] |
Sep 2016 | EPA released the final IRIS Toxicological Review of Ammonia (noncancer Inhalation) to the IRIS database. |
Download(s)
This download(s) is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency determination or policy.
- IRIS Assessment Plan for Ammonia and Ammonium Salts: Noncancer Assessment for Oral Exposure (Scoping and Problem Formulation Materials) (PDF) (32 pp, 807 KB, about PDF)
- Docket for EPA-HQ-ORD-2018-0132
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