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Tribal-FERST Issue Profile: Chromium

Chromium is an odorless, tasteless metallic element found naturally in rocks, plants, soil, volcanic dust and animals. The two most common forms of chromium found in the environment are Trivalent chromium (or chromium-3) and Hexavalent chromium (or chromium-6).

Chromium-3 is an essential human dietary element found in many vegetables, fruits, meats, grains and yeast. Chromium-6 occurs naturally in the environment from erosion of natural chromium deposits. It can also be produced by industrial processes. There are demonstrated instances of chromium being released into the environment by inadequate industrial storage and waste disposal practices.

EPA classifies chromium-6 as a human carcinogen via inhalation exposure. There is not enough data to classify chromium-3 as a human carcinogen.

Learn more about chromium by exploring the links below.

General Information


Environmental Concentrations, Human Exposures, and Health Risks

Interested in learning more about a specific location? Type an address, city or ZIP code into the box on the right side of the map below. Click on the map to see a pop-up with information about ambient concentration, exposure concentration and cancer risk for the chosen location(s). Navigate to the next feature by clicking the small arrow(s) on the top right side of the pop-up.

Exposure and Risk Reduction Options

Strategies Implemented By Other Communities

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