Arsenic legacy in lake-bottom sediments from historic N.S. mine worries researcher
Updated: Sep 7, 2022
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.”