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IRIS Toxicological Review of Urea (External Review Draft)
Archive disclaimer
Archived files are provided for reference purposes only. The file was current when produced, but is no longer maintained and may now be outdated. Persons with disabilities having difficulty accessing archived files may contact the NCEA Webmaster for assistance. Please visit http://epa.gov/ncea to access current information.
Federal Register Notices
Contact
- Amanda Persad
- by phone at: 919-541-9781
- by fax at: 919-541-2985
- by email at: persad.amanda@epa.gov
- by fax at: 919-541-2985
Downloads/Related Links
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.
- Toxicological Review of Urea in Support of Summary Information on the Integrated Risk Information System (IRIS) (PDF) (94 pp, 546 KB, about PDF)
- Charge to the External Reviewers (PDF) (2 pp, 15 KB, about PDF)
- Consolidated Comments from the External Peer Review (Final) (PDF) (30 pp, 159 KB, about PDF)
Related Link(s)
Public Comments
Comments on the assessment may be submitted and reviewed using the e-Government Regulations.gov Web site. From the site, select “Environmental Protection Agency” and the keyword “EPA-HQ-ORD-2010-0633" (for the docket ID) to comment on this report.
Background
The draft Toxicological Review of Urea provides scientific support and rationale for the hazard and dose-response assessment pertaining to chronic exposure to Urea. Urea, also known as carbamide, is an endogenous product of protein and amino acid catabolism. It can also be produced synthetically by combining ammonia, carbon monoxide, and sulfur in methanol. Urea is utilized in diesel selective catalyst reduction, in fertilizers and animal feed, plastics, flame-proofing agents, adhesives, flavoring agents and consumer goods such as liquid soaps, detergents and household cleaning products.
History/Chronology
| Jun 2010 | EPA initiated the interagency science consultation on the draft Toxicological Review of Urea. |
| Sep 2010 | EPA released the External Review Draft for public review and comment and the interagency science consultation review draft with comments. [Federal Register Sep 28, 2010] |
| Nov 2010 | EPA announced the external peer review meeting to be held on December 13, 2010 via teleconference. [Federal Register Nov 10, 2010] |
| Jan 2011 | EPA releases the comments from the public comment period and external review workshop. |
Next Steps
Following external peer review and public comment, the final assessment will be posted to the IRIS database.
Citation
U.S. EPA. IRIS Toxicological Review of Urea (External Review Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-10/005A, 2010.