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What’s really in your bottled water?

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Consumer Reports, September 2020

CR recently tested 47 bottled waters, including 35 noncarbonated and 12 carbonated ones. For each product, we tested two to four samples. The tests focused on four heavy metals (arsenic, cadmium, lead, and mercury), plus 30 PFAS chemicals, which pose special concerns because they can linger in the environment almost indefinitely.

The federal government has issued only voluntary guidance for PFAS, saying the combined amounts for two specific PFAS compounds should be below 70 parts per trillion. A few states have set lower limits, of 12 to 20 ppt, according to American Water Works, an industry group. The International Bottled Water Association, another group, says that it supports federal limits for PFAS and that bottled water should have PFAS levels below 5 ppt for any single compound and 10 ppt for more than one. Some experts say the cutoff for total PFAS levels should be even lower, 1 ppt.

Continue reading at Consumer Reports.

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