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Clean
Ep 17. Toxic Pollution in Blue Mountains
August 21, 2008 07:31 PM PDT

Pollution has severely reduced aquatic biodiversity in rivers in the Blue Mountains World Heritage area. New tests have shown the water contains toxic levels of zinc, and the population of some water fauna have been reduced by as much as half. The pollution is believed to be caused by run-off from an abandoned mine. Libby King spoke to Dr. Ian Wright, a researcher at the University of the Western Sydney.

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