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Published online 12 May 2004 | Nature | doi:10.1038/news040510-4
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Plants purify poisoned water
Ferns suck up arsenic quickly and cheaply.
Water contaminated with arsenic can be cleaned by growing ferns in it, US scientists say.
Mark Elless of the Edenspace Systems Corporation in Dulles, Virginia, and his colleagues have found that a species of fern called Pteris vittata will suck arsenic out of tainted water.
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