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Environmental Assessment

IRIS Toxicological Review of Vanadium Pentoxide (Interagency Science Consultation Draft)

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Report Information

On September 30, 2011, the draft Toxicological Review of Vanadium Pentoxide and the charge to external peer reviewers were released for external peer review and public comment. The Toxicological Review and charge were reviewed internally by EPA and by other federal agencies and White House Offices before public release. In the new IRIS process (May 2009), introduced by the EPA Administrator, all written comments on IRIS assessments submitted by other federal agencies and White House Offices will be made publicly available. Accordingly, interagency comments and the interagency science consultation draft of the IRIS Toxicological Review of Vanadium Pentoxide and the charge to external peer reviewers are posted on this site.

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Norman Birchfield
  • by phone at:   703-347-0174
  • by fax at:   703-347-8699
  • by email at:  birchfield.norman@epa.gov

Background

Vanadium pentoxide is the most common commercial form of vanadium. It is used as a catalyst in the production of sulfuric acid and some nanomaterials. When fuel oils containing vanadium are combusted, they leave behind byproducts containing vanadium pentoxide in the forms of dust, soot, boiler scale, and fly ash. Vanadium is found at multiple Superfund sites.

History/Chronology

Jan 1987The RfD for vanadium pentoxide was posted to the IRIS Database.
Sep 2011EPA hosted an interagency science consultation on the review of the draft Toxicological Review of Vanadium Pentoxide.
Sep 2011EPA released the external review draft of the vanadium pentoxide assessment for public review and comment. [Federal Register Notice Sep 30, 2011]

Next Steps

Following external peer review and public comment, the assessment will be revised taking into consideration the comments received. It will then undergo a final internal review by EPA and other federal agencies and White House offices. After completing the review it will be posted to the IRIS database.

Citation

U.S. EPA. IRIS Toxicological Review of Vanadium Pentoxide (Interagency Science Consultation Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-11/004C, 2011.

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