Bark with a bite

indian scientists have found the bark of widely grown eucalyptus can help solve one of the most gruelling industrial problems: removing chromium from effluents. The bark not only reduces chromium content in industrial waste to safe levels, but also enables the toxic metal's recovery for reutilisation, claim researchers at the Indian Institute of Technology (iit), Delhi.

Chromium can cause lung cancer and damage to other vital organs like the kidney, liver and stomach. It is also toxic to other life forms including plants and microorganisms. The metal occurs in two forms