Chromium 6 is a carcinogen that, according to the Environmental Working Group (EWG), contaminates two-thirds of American's tap water with levels above what scientists deem safe. Their discovery came after testing nearly 60,000 samples across all 50 states from 2013-2015.
So what's so bad about Chromium-6 you may be asking yourself. Well, although the chemical is naturally occurring, unusually high levels in tap water are attributed to industrial projects. Even in small amounts chromium 6 can cause skin burns, pneumonia, complications during childbirth and stomach cancer. (See detailed EWG report)
So far California is the first state to put a safe cap on safe Chromium 6 concentrations in tap water: 10 parts per billion. The EPA has yet to issue a federal standard on the maximum amount of chromium 6 allowed in our tap. According to the EWG Oklahoma, Arizona and California have the highest statewide averages of chromium-6. If you're concerned about levels of Chromium 6 in your tap water see this interactive map by the EWG for county by county level testing.
We here at Aquagear believe that chromium-6 does not belong in your drinking water, so we made a filter that removes 99.4% of it's levels. If you're interested in learning what else our filters remove see our testing page here.