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Arsenic legacy in lake-bottom sediments from historic N.S. mine worries researcher - Medicine Hat NewsMedicine Hat News


Arsenic legacy in lake-bottom sediments from historic N.S. mine worries researcher
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Runoff is seen at a historical tailing area, which drains towards the brook that feeds into Lake Charles, at the Montague mine site near Halifax, in a June 2019 handout photo. Findings from a study describing the arsenic legacy left in lake-bottom sediments near an abandoned Halifax gold mine are setting off alarm bells for a senior cancer researcher. THE CANADIAN PRESS/HO-Saint Mary s University department of Environmental Science, Linda Campbell, MANDATORY CREDIT
HALIFAX – Findings from a study describing the arsenic legacy left in lake-bottom sediments near an abandoned Halifax gold mine are setting off alarm bells for a senior cancer researcher. ....

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Arsenic Legacy in Lake Bottom Sediments From Historic N.S. Mine Worries Researcher


Arsenic Legacy in Lake Bottom Sediments From Historic N.S. Mine Worries Researcher
HALIFAX Findings from a study describing the arsenic legacy left in lake−bottom sediments near an abandoned Halifax gold mine are setting off alarm bells for a senior cancer researcher.
A paper published Monday in the journal Science of the Total Environment says a dated core sample taken from the bottom of Lake Charles discovered arsenic at 4,960 milligrams per kilogram, more than 280 times higher than levels “where biological harm is expected.”
The site is downstream from the historic Montague mines, where successive gold rushes saw the creation of 121,000 tonnes of arsenic-rich tailings between the 1860s and 1940. ....

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