Why did PG&E use chromium 6?
Considering this, how does chromium 6 get into water? Chromium-6 is highly toxic and has been found to cause allergic dermatitis, and stomach and gastrointestinal cancer in animals and humans. Used in the manufacture of stainless steel, textiles, anticorrosion coatings, and in leather tanning, it gets into drinking water through industrial pollution.