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Environmental Assessment

IRIS Toxicological Review of Halogenated Platinum Salts and Platinum Compounds (External Review Draft)

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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 The file was current when produced, but is no longer maintained and may now be outdated.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 visit http://epa.gov/ncea to access current information.

Report Information

EPA released the draft toxicological review for public comment under the Integrated Risk Information System (IRIS) Program. The original draft assessment (January 2009) has been archived but is available on this web page for the sake of transparency.

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Anuradha Mudipalli
  • by phone at:   919-541-0413
  • by email at:  mudipalli.anu@epa.gov


EPA began an assessment of the potential human health effects of halogenated platinum salts in order to address questions focused on the use of a platinum fuel additive in some clean diesel projects under the Diesel Emission Reduction Act.


2005The IRIS assessment of Halogenated Platinum Salts and Platinum Compounds was initiated in 2005.
Feb 2009EPA released an updated external review draft for public review and comment.
Mar 2009EPA announced a public listening session for the draft review report.
Apr 2009EPA announced an external peer review workshop for the draft review report to be held on May 21st in Washington, DC.
Jul 2009EPA released the comments from the public comment period and external review workshop.
Apr 2013EPA announced that the Agency no longer has a need for this assessment. Therefore, the January 2009 draft assessment has been archived.

Next Steps

EPA has removed the platinum fuel additive from the list of registered additives for use in on-road diesel vehicles. Because of this, the Agency no longer has a need for the IRIS assessment of halogenated platinum salts.

Additional Information

Comments on the draft assessment were submitted to the EPA using the e-Government Regulations.gov Web site. From the site, select Environmental Protection Agency and the keyword EPA-HQ-ORD-2009-0040 (for the docket ID) to see the comments that were submitted.


U.S. EPA. IRIS Toxicological Review of Halogenated Platinum Salts and Platinum Compounds (External Review Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-08/018, 2009.


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.

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