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SCIENCE FILE | Science in Brief

Mercury Rain Falls on Arctic Each Spring, Canadian Report Says

June 19, 1997|From Times staff and wire reports

A toxic rain of mercury falls on the arctic every spring just when ecosystems are preparing for their first burst of activity of the year, Canadian researchers report in today's New Scientist magazine. The researchers at Environment Canada said the reason for the rain of mercury, one of the most poisonous substances known to man, was unclear.

But they said the pattern almost exactly mimics the timing of ozone depletion and suggested that similar processes drive both phenomena.

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