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    Home»Health»Hexavalent Chromium– Gafacom
    Health

    Hexavalent Chromium– Gafacom

    By June 30, 2022No Comments3 Mins Read
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    Hexavalent chromium is a form of the metallic element chromium. Chromium is a naturally occurring element found in rocks, animals, plants, soil, and volcanic dust and gases. It comes in several different forms, including trivalent chromium and hexavalent chromium. Trivalent chromium is often referred to as chromium (III) and is proposed to be an essential nutrient for the body. Hexavalent chromium, or chromium (VI), is generally produced by industrial processes.

    Chromium compounds, such as hexavalent chromium, are widely used in electroplating, stainless steel production, leather tanning, textile manufacturing, and wood preservation. The U.S. is one of the world’s leading producers of chromium compounds.

    How are people exposed to hexavalent chromium?

    Hexavalent chromium exposure occurs through breathing it in, ingesting it in food or water, or direct contact with the skin.

    What are the known health effects of inhaling hexavalent chromium?

    Hexavalent chromium compounds have been shown to cause lung cancer in humans when inhaled. The Report on Carcinogens lists hexavalent chromium compounds as known human carcinogens. Studies have consistently shown increased lung cancer rates in workers who were exposed to high levels of chromium in workroom air.

    People who work in industries that process or use chromium or chromium compounds can be exposed to higher than normal levels of chromium. Occupational exposures occur mainly among workers who handle chromate-containing pigments, spray paints, or coatings; operate chrome plating baths; or weld or cut metals that contain chromium, such as stainless steel. Some of the adverse health effects from hexavalent chromium exposures include nasal and sinus cancers, kidney and liver damage, nasal and skin irritation and ulceration, and eye irritation and damage.

    What do NTP studies say about hexavalent chromium in drinking water?

    The NTP studies show that sodium dichromate dihydrate, a compound containing hexavalent chromium, causes cancer in laboratory animals following oral ingestion. Researchers found significant increases in tumors at sites where tumors are rarely seen in laboratory animals. Male and female rats had malignant tumors in the oral cavity. The studies conducted in mice found increases in the number of benign and malignant tumors in the small intestine, which increased with dose in both males and females.

    Are there safety levels for exposure to chromium in drinking water?

    The U.S. Environmental Protection Agency has set a maximum contaminant level of 100 parts per billion for total chromium in drinking water. Numerous states have established limits of 50 parts per billion of total chromium in drinking water.

    What can I do to prevent exposure of my family to hexavalent chromium?

    Work with your public health officials to determine if hexavalent chromium is present in your environment, such as water, air, and soil, and at what levels, particularly if you live near a site where chromium compounds are disposed of or manufactured. Children should avoid playing in soils near uncontrolled hazardous waste sites where chromium may have been discarded.

    Limit occupational exposure to hexavalent chromium compounds. The Occupational Safety and Health Administration established a hexavalent chromium standard that protects employees from chromium exposure risks, such as lung cancer, skin ulcers, and dermatitis.

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