Heavy Metal Contamination
The lake is heavily contaminated with mercury from the nearby Sulphur Bank Mercury Mine. The nearby abandoned mine was declared a Superfund site in the early 1990s and is still undergoing cleanup. The California Department of Fish and Game presently recommends that women of childbearing age and children limit their consumption of certain fish from Clear Lake, due to the presence of methylmercury compounds in lake sediments.
Read more about this topic: Clear Lake (California)
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