Years of fireworks caused above-normal amounts of heavy metals in Lac Leamy - Ottawa - CBC News

By CBC News Ottawa, August 21, 2015

Fireworks shows that used to take place over Lac Leamy for years caused some higher concentrations of heavy metals and other contaminants, but not enough to be considered a risk to the people who swim or boat there. Documents obtained by Radio-Canada show the National Capital Commission was interested in the impact the fireworks were having on the lake and beach. via Years of fireworks caused above-normal amounts of heavy metals in Lac Leamy - Ottawa - CBC News.

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