A study in China found high rates of stomach cancers in people whose water was contaminated with so much Chromium-6 from a smelter that it had turned yellow. There also is human evidence that drinking Chromium 6 contaminated water can cause cancer. Based on this and other animal studies, in 2010, scientists at the respected and influential California Office of Environmental Health Hazard Assessment concluded that ingestion of tiny amounts of Chromium-6 can cause cancer in people, a conclusion affirmed by state scientists in New Jersey and North Carolina. In 2008, a two-year study by the National Toxicology Program found that drinking water with chromium 6, or hexavalent chromium, caused cancer in laboratory rats and mice. HOW MUCH CHROMIUM-6 ARE YOU AND YOUR NEIGHBORS DRINKING? Check out Environmental Working Group's Interactive Chromium-6 Map below to see the current levels of Chromium-6 in your community's water supply. Chromium-6 is also found in the ash from coal-burning power plants and used to lower the temperature of water in the cooling towers of power plants. Chromium-6 is used in electroplating, stainless steel production, leather tanning, textile manufacturing and wood preservation, according to the National Toxicology Program (PDF). Within the European Union, the use of hexavalent chromium in electronic equipment is largely prohibited by the Restriction of Hazardous Substances Directive.Įpic Water Filters' products tested to remove Chromium 6 (Hexavalent).Įpic Outdoor Adventure Water Bottle Filter 96.6%Ĭhromium-6 is rare in nature, and is produced by industrial processes. Workers who are exposed to hexavalent chromium are at increased risk of developing lung cancer, asthma, or damage to the nasal epithelia and skin. Problematic exposure is known to occur among workers who handle chromate-containing products and those who grind and/ or weld stainless steel. Workers in many occupations are exposed to hexavalent chromium. Inhaled hexavalent chromium is recognized as a human carcinogen (causing cancers in humans). Hexavalent chromium can also be found in drinking water and public water systems. In these situations the chromium is not originally hexavalent, but the high temperatures involved in the process result in oxidation that converts the chromium to a hexavalent state. 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.ĬHROMIUM-6 can be formed when performing "hot work" such as welding on stainless steel or melting chromium metal. Chromium 6 is used in textile dyes, wood preservation, anti-corrosion products, chromate conversion coatings, and a variety of niche uses. Additional hexavalent chromium compounds are chromium trioxide and various salts of chromate and dichromate. Hexavalent chromium (chromium (VI), Cr (VI), chromium-6) refers to chemical compounds that contain the element chromium in the +6 oxidation state.
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