The level of chromium-6 found in Chicago's water supply last month was 0.18 parts per billion, which is now nine times higher than the acceptable 0.02 ppb adopted by California officials just this month. Although nothing has been said about limiting the amount of Cr-6 in our local water supply, officials vow to begin quarterly testing for the substance, and to report their findings online. The EPA has also agreed to review it's current chromium limits, and to consider separating the villified chromium-6 from its cousin chromium-3, which is an essential nutrient.
While chromium levels can knowingly be reduced through fancy water filtration systems, carbon filters (like the one in my fridge) have not yet been proven to separate this chemical out of the tap water (yikes!)
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