|
NEWSBRIEF -
Coffee gets the lead out.
Many cities, particularly in the developing world, have high levels of toxic metals such as
copper and lead in their water supply. Australian researchers now report that coffee made
from contaminated water is essentially free of these pollutants. They found that the
process of dripping hot water through the ground coffee removed up to 90 per cent of the
copper and lead dissolved in the water. John Bisby, a consultant in environmental and
occupational medicine in Melbourne, points out that drinking more coffee is not a practical
way to combat water pollution. Says he "You can't drink all your water as coffee or you
will have other side effects that are a lot worse than lead."
There's nothing like a good brew for cleaning up drinking water. New Scientist, February
12, 2000
|