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A New Technology to Detect Toxic Metals in Water
September 01, 2007 at 7:25 PM
Environmental Health
Our goal is to develop a simple field test that can warn people or environmental authorities if dangerous levels of toxic metals or metalloids (metal-like substances such as arsenic) are present in the environment, to which they might be exposed, he explains.
The test could provide vital in helping to tackle one of the world's greatest disasters the poisoning of tens of millions of people in Bangladesh and West Bengal, India, through naturallyoccurring arsenic in their household well water.
But countries such as Australia and New Zealand also have an arsenic problem from the tens of thousands of old sheep and cattle dips where arsenic was used for decades to control pests," Mr McKay said.
"In many cases these old dip sites have been forgotten and spreading urbanization has covered them.
We also have numerous old gold mining sites where arsenic was once used, tailings dumps from almost any kind of metal mine and wetlands that were used to trap contaminated runoff.
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