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Use P2 to reduce Cr(VI) exposure
The EPA’s Integrated Risk Information System has released the potential toxic effects of hexavalent chromium, or Cr(VI), compounds. To lessen the health risks related to Cr(VI), industries are turning to safer alternatives. Pollution prevention plans help companies find good alternatives and put them to use, reducing unsafe exposures and promoting environmental sustainability.
A major source of exposure to Cr(VI) occurs during welding on stainless steel and other alloy steels with chromium metal. Cr(VI) is also used as coloring in dyes, paints and plastics, and as an anticorrosive in paints, primers and other surface coatings. It is also used to electroplate chromium onto metal parts to provide a decorative or protective coating.
Tests showed that Cr(VI) is likely to be cancer-causing to the digestive system and is also harmful to the respiratory system. The EPA’s chronic oral reference dosage (RfD) of Cr(VI) is 0.9 µg/kg-day.
Companies can consider strategies for replacing the material, process, or technology to reduce exposure, such as using alternative metals or adopting advanced welding techniques. For more information or to read the full report, visit the EPA’s IRIS site or email PPI at ksu-ppi@k-state.edu.
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