Testing Reveals Hexavalent Chromium Present In Water Supply Of 31 Out Of 35 U.S. Cities

The Environmental Working Group (EWG) has released a report which indicates that the tap water in 31 out of 35 cities contains hexavalent chromium, a known carcinogen or cancer-causing agent. This means that millions of residents in the U.S. are being exposed to the toxic chemical that was made famous in the 2000 movie “Erin Brockovich.”

Of the 35 cities whose tap water was tested, the highest concentrations were found in Honolulu (HI), Norman (OK), and Riverside (CA). Other heavily populated cities such as Chicago (IL), Los Angeles (CA), Miami (FL), and Phoenix (AZ) were also included in the list, according to news reports.

For many decades, hexavalent chromium was a widely used industrial chemical and has evidently leached its way into the water supply of 31 out of 35 cities that were tested throughout the US. Bethesda (MD) and Washington, D.C. were also on the list of cities where the chemical is showing up.

According to the OSHA website, chromium hexavalent (CrVI) compounds, often called hexavalent chromium, exist in several forms. Industrial uses of hexavalent chromium compounds include chromate pigments in dyes, paints, inks, and plastics; chromates added as anticorrosive agents to paints, primers, and other surface coatings; and chromic acid electroplated onto metal parts to provide a decorative or protective coating. Hexavalent chromium can also be formed when performing “hot work” such as welding on stainless steel or melting chromium metal.

Hexavalent chromium has been shown to cause lung cancer when inhaled in the workplace. Scientists have recently turned up evidence of cancer in laboratory animals when hexavalent chromium is ingested. The chemical has also been linked to liver and kidney damage in animals as well as various cancers.

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