Tag Archives: hexavalent chromium

Putting all the pieces together: ACC helps improve chemical risk assessments

Most would agree that credible, science-based assessments of the potential risks from chemical exposures are necessary for providing both regulators and the regulated community with a useful summary of the science on certain chemicals. Very often these assessments underpin product stewardship and regulatory actions taken to protect human health and the environment. When creating chemical […]

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Unfinished business: Changes to IRIS still needed to ensure assessments are based on modern science

The May release of the National Academy of Sciences (NAS) review of the U.S. Environmental Protection Agency’s (EPA) progress in improving the Integrated Risk Information System (IRIS) was accompanied by much fanfare. The “kudos” directed to Ken Olden, who took over the IRIS program two years ago, are well-deserved. Dr. Olden has brought about a […]

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Safe, affordable drinking water: the California debate over hexavalent chromium

A debate is taking place in California over a proposed maximum contaminant level (MCL) for hexavalent chromium in drinking water. The proposed MCL from the California Department of Public Health (CDPH) is 10 parts per billion (ppb), one fifth of the current MCL of 50 ppb for total chromium. Everyone agrees that Californians should have […]

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