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  • About
    • Our Team
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    • Drinking Water Treatability
    • Resource Economics
  • Publications
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NEWS

Forest fires can impact the water as well as the air

8/22/2019

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​Researchers from the University of Alberta say increased runoff can add contaminants to our mountain water

​CBC News · Posted: Aug 22, 2018 9:53 AM MT | Last Updated: August 22, 2018
Article originally posted to CBC.ca ​

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There are hundreds of wildfires burning across B.C. and that can affect the water we drink. (Pondosy Bay Wilderness Resort)
Forest fires don't impact just the quality of the air we breathe, they can also impact the water we drink. 

Researchers from the University of Alberta's Southern Rockies Watershed Project have been working to understand what impact forest fires have on water quality and treatment.

"We get the overwhelming majority of our water supplies in Alberta from the forested landscapes," said Uldis Silins, who co-leads the research. 

  • 322 hours of smoke makes 2018 Calgary's smokiest year on record

"So cities like Calgary, Lethbridge, Red Deer, Edmonton, Grande Prairie — all of those cities — the majority of their water is coming from those forested landscapes."

Wildfires result in an increase in contaminants from runoff, such as sediment, nutrients and organic carbon that all gets flushed into pristine mountain water.
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Monica Emelko and Uldis Silins co-lead the Southern Rockies Watershed Project which is trying to better understand the impact forest fires have on water quality and treatment. (Submitted by Uldis Silins)
"If we're talking about surface water, obviously we're not drinking water straight out of the river," said Monica Emelko, who also co-leads the research. 

"We have to put out safe water. But some of those nutrients can lead to challenges that make it harder to get our coagulant doses right — our chemicals used during the treatment process — they can lead to larger swings in water quality so that we're constantly trying to keep up."

Emelko says large swings in water quality drive up costs, and water needs to be considered when managing forests. 
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    The Network provides insights into new scientific research for safe, secure drinking water---globally---which starts with resilient forests

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