Virtually all chromium ore is processed via hexavalent chromium, specifically the salt sodium dichromate.
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15 Facts About Hexavalent chromium
2.
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.
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3.
All hexavalent chromium compounds are toxic as well as carcinogenic, especially if airborne and inhaled where they cause lung cancer.
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4.
Workers who are exposed to hexavalent chromium are at increased risk of developing lung cancer, asthma, or damage to the nasal epithelia and skin.
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5.
Inside the cell, hexavalent chromium is reduced first to pentavalent chromium then to trivalent chromium without the aid of any enzymes.
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6.
Ingestion of Hexavalent chromium through drinking water has been found to cause cancer in the oral cavity and small intestine.
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7.
Reduction of toxicity of hexavalent chromium involves methods using chemicals, microbes and plants.
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8.
Adsorption of Hexavalent chromium is found to be effective in the lower pH range and at higher temperatures and subsequent desorption is readily achieved upon alkaline treatment of the adsorbent.
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9.
Toxic poultry feed contaminated by Hexavalent chromium-based leather tanning waste products has been shown to have entered the food supply in Bangladesh through chicken meat, the most common source of protein in the country.
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10.
Current EPA standard in measuring chromium is in reference to total chromium, both trivalent and hexavalent.
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11.
In 1991, the MCL for Hexavalent chromium exposure was set based on potential of "adverse dermatological effects" related to long-term Hexavalent chromium exposure.
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12.
EPA currently limits total Hexavalent chromium in drinking water to 100 parts per billion, but there is no established limit specifically for Hexavalent chromium.
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14.
Between 1952 and 1966, Hexavalent chromium was used to prevent corrosion in the cooling stacks.
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15.
The lawsuit alleges that the tumors were caused by waste hexavalent chromium that had been distributed to local farmers as free fertilizer.
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