This is the best advertisement for reverse-osmosis walter filters that I’ve seen yet. Mind you, the intentionally-added fluoride in many public water systems is just as bad — although interested parties would have you believe otherwise. Don’t think that bottled water is the answer, either — many bottled waters contain chemicals too because 40% of bottled water is drawn from municipal supplies. From the Washington Post:
A new analysis showing the presence of a probable carcinogen in the tap water of 31 cities across the country, including the District and Bethesda, has raised questions about what consumers in those communities can do to reduce their exposure.
The chemical, hexavalent chromium, got public attention via the 2000 film “Erin Brockovich” and has been deemed a “probable carcinogen” by the National Toxicology Program, part of the National Institutes of Health.
Although basic water filters such as those made by Brita and PUR do not remove hexavalent chromium, several reverse-osmosis systems designed for home use can take the chemical out of water.
The analysis, released Monday by the Environmental Working Group, is the first nationwide look at hexavalent chromium in drinking water to be made public. The advocacy group sampled tap water from 35 cities and detected hexavalent chromium in 31 of those communities. Of those, 25 had levels that were higher than a health goal proposed last year by the state of California.
The federal government has not set a limit for hexavalent chromium in drinking water but is reexamining the chemical to decide whether it should impose such restrictions.
Last year, California proposed a “public health goal” for a safe level of hexavalent chromium in drinking water: 0.06 parts per billion. If the state sets a limit, it would be the first in the nation.
Hexavalent chromium was a commonly used industrial chemical until the early 1990s. It is still used in some industries, such as chrome plating and the manufacturing of plastics and dyes. The chemical can also leach into groundwater from natural ores…
[continues in the Washington Post]
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