Fracturing: Salts of trivalent chromium (Cr3 +) oxidized to hexavalent (Cr6 +) known as chromate

The fight against shale gas Internet translation of article by André Picot, Toxicochimiste, president of ATC Toxicology, April 21, 2012,
Hence our assumption that these new products could only come from chemical interactions, favored by temperature and pressure very high in this natural reactor formed in the deep underground during the fracturing of the shale. And salts of trivalent chromium (Cr3 +) low toxicity (allergenic only) are oxidized to hexavalent (Cr6 +) known as chromate, which are potent mutagens and carcinogens in humans. … Recent publications show an abnormal rate of cancer…around extraction sites….

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