Frequent Questions

Is chromium-6 a carcinogen?

In the draft human health assessment for chromium-6 that was released in September 2010 by EPA for independent expert peer review and public comment, EPA is proposing to classify hexavalent chromium (or chromium-6) as likely to cause cancer in humans when ingested over a lifetime. EPA will make a final determination by the end of 2011. In 1998, EPA?s Integrated Risk Information System (IRIS) Program classified hexavalent chromium as a known human carcinogen via inhalation but did not have the science at that time to be able to classify it as to human carcinogenicity via ingestion. For more information on chromium, please visit our Web site at the following URL:
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