Chromium-6: A Probable Carcinogen
Found in 31 city waters, including New Haven, CT
Hexavalent chromium, or “Chromium-6” was recently detected in 31 city waters after The Environmental Working Group, or EWG, completed a study of 35 cities across the country. Of the 35 cities tested, 31 had detectable levels of chromium-6, with 25 cities including New Haven, CT exceeding limits recently proposed by California.
Chromium is a tasteless and odorless element found naturally in the environment and produced by industrial processes, such as steel and pulp mills. It made headlines in the 2000 movie “Erin Brockovich” starring Julia Roberts, in which Pacific Gas & Electric Company knowingly contaminated water with hexavalent chromium. Chromium comes in different forms. Chromium-3 is considered an essential nutrient, and at the right dosage it can be found in vitamins and dietary supplements. Chromium-6, however, is recognized as a toxin and human carcinogen when inhaled or ingested.
The Environmental Protection Agency, or EPA, total chromium limit is 100 ppb (parts per billion). But, it includes both Chromium- 3 AND Chromium-6. California has recently proposed a specific limit of 0.06 ppb for Chromium-6. Connecticut does not have a state limit and refers to the EPA limit for total chromium.
Treatment options approved by the EPA include Reverse Osmosis, Ionic Exchange, Coagulation/Filtration and Lime Softening. Senior scientist Rebecca Sutton from EWG recommends treating your water. She stated that a “water filter is a great way to protect you and your family.”
Not sure what to do? Arrange to have your water tested by a certified lab or by your local water treatment expert.
Click here to see the full report by EWG