23.11.14

Heavy metal contamination



A 25-foot (7.6 m) wall of coal fly ash contaminated with heavy metals, resulting from the release of 5.4 million cubic yards of coal fly ash slurry into the Emory RiverTennessee, and nearby land and water features, in December 2008.[1] Testing showed significantly elevated levels of arsenic, copper, barium, cadmium, chromium, lead, mercury, nickel, and thallium in samples of slurry and river water.[2] Cleanup costs may exceed $1.2 billion.[3]

Photo by Brian Stansberry

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