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IRIS Toxicological Review of Hydrogen Cyanide (External Review Draft)
Federal Register Notices
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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 The file was current when produced, but is no longer maintained and may now be outdated.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 use the contact us form if you need additional assistance.
|Jan 1987||EPA posted an assessment for cyanide salts (RfD only).|
|Sep 1994||EPA posted an assessment for hydrogen cyanide (RfC only).|
|Jun 2004||The IRIS reassessment of hydrogen cyanide was initiated in 2004.|
|Sep 2009||EPA released an external review draft of the assessment for public review and comment.|
|Oct 2009||EPA announced a public listening session that was held on October 27, 2009 in a September 23, 2009 Federal Register Notice.|
|Nov 2009||EPA announced the details of an external peer review workshop to be held on December 14, 2009 in a November 10, 2009 Federal Register Notice.|
|Jan 2010||EPA released the comments from the public comment period and external review workshop.|
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.