Uranium
Category: radiological
EPA MCL
0.03 mg/L
Status
EPA Regulated
NSF Standard
NSF/ANSI 58
Health Effects
Kidney toxicity (nephrotoxicity) with long-term exposure - uranium is a heavy metal that damages the kidneys. Also a radioactive carcinogen, though the chemical toxicity is generally considered a greater concern at typical drinking water levels.
Where It Comes From
Erosion of natural deposits. Uranium is a naturally occurring radioactive element found in certain geological formations, particularly granitic and sedimentary rocks.
Where It's Commonly Found
Groundwater in the western U.S. (especially the Southwest and Rocky Mountain regions), parts of the Great Plains, and New England. Naturally occurring in aquifers with uranium-bearing rock.
Hundreds of community water systems have reported uranium levels near or above the MCL of 30 µg/L. Private wells in uranium-rich geology may have significantly elevated levels.
How to Remove It
Effective Technologies
- reverse osmosis
- ion exchange
- distillation
Does NOT Remove It
- activated carbon
- carbon block
- UV
- KDF
- mechanical filtration
- ceramic
Official Sources
Related Contaminants
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