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Published online 18 June 2001 | Nature | doi:10.1038/news010621-2
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Marsh spews bacteria onto beach
Artificial wetlands could dirty water rather than clean it.
The role of man-made wetlands as water filters has been called into question by a report that connects a restored coastal marsh in California with the contamination of a nearby beach.
Persistently high levels of faecal bacteria forced the temporary closure of Huntington Beach in southern California in 1999 and led Stanley Grant, of the University of California, Irvine, and his team to hunt for the bacteria's source.
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