A federal judge has ordered the U.S. Environmental Protection Agency to further regulate fluoride in drinking water because high levels could pose a risk to the intellectual development of children.
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7 points
I looked into whether or not my city was adding fluoride, since I have garbage mouth-genes. I learned that they aren’t (big Canadian city), and If a utility is adding fluoride it may be in different quantities than a neighbouring municipality. The concentrations can vary quite a bit and too much isn’t a good thing.
3 points
That I think that list is just Montreal, Vancouver, and Calgary, as our other 5 large cities use fluoride.
2 points