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Home / 2015 / September / 14 / UBC researcher warns about phosphorus pollution in alpine lakes
Environment & Sustainability, Teaching & Learning

UBC researcher warns about phosphorus pollution in alpine lakes

September 14, 2015

Post-doctoral researcher Janice Brahney takes a water sample at the outlet of Black Joe Lake, Wind River Range, Wyoming to test for phosphorus pollution.

Post-doctoral researcher Janice Brahney takes a water sample at the outlet of Black Joe Lake, Wind River Range, Wyoming to test for phosphorus pollution.

Newly-published report should be a ‘wake-up’ call for global scientists

A researcher at UBC’s Okanagan campus says a recent analysis of hundreds of alpine lakes around the world show an alarming increase in phosphorus pollution.

What’s concerning, says Janice Brahney, is that the phosphorus is getting into these pristine and remote lakes by atmospheric deposition — travelling through the air unmonitored and without regulations.

Brahney, who earned her PhD in Geological Science from the University of Colorado under Dr. Jason Neff, is currently a post-doctoral researcher with the Irving K. Barber School of Arts and Science’s Earth and Environmental Sciences department. She has been part of a research team studying phosphorus pollution and other key nutrients found in more than 700 alpine lakes in 21 regions around the world. These lakes include sites in Canada and the United States, as well as in South America, Europe, Africa, and India.

The team has noticed a significant increase of phosphorus pollution in alpine lakes. Because the lakes are high altitude and in hard-to-get-to areas, researchers can determine that phosphorus and other pollutants are getting into the water via atmospheric deposition.

“Phosphorus pollution was a big problem in the 1970s and 1980s when human phosphorus sources were found in watersheds around the world,” says Brahney. “Once it was recognized as a problem, effluent regulations were established to help clean up the aquatic environment. But now phosphorus is being transported in appreciable amounts through our atmosphere.”

Their research, published this week in Global Biogeochemical Cycles — a scientific journal for the American Geophysical Union, should be a wake-up call for global scientists, Brahney adds.

“The atmospheric component of this pollution is much harder to manage than in contained watersheds,” says Brahney, noting that political and geographic borders cannot stop pollutants. And she says while some organizations like the United States Forest Service have taken note, not enough attention has been drawn to this matter.

“There is more and more evidence piling up that atmospheric phosphorus pollution is a problem and even though our research is getting some attention, more needs to be done.”

Atmospheric phosphorus pollution is a direct result of human activity including biomass burning to clear land, oil-and-gas operations, farming and rangeland practices, power generation, excessive use of internal combustion engines, and industrial waste. Excessive phosphorus in lake water can lead to poor drinking water quality, reduced biodiversity, and have food quality implications for higher organisms.

Brahney says there are two major issues with atmospheric deposition of phosphorous. The first being it is not currently monitored. The second, managing a global issue that crosses international borders. She is hoping the research paper will bring more attention to the issue and wake up the global community.

“At the very least, this is an environmental process that needs to be measured and monitored,” says Brahney. “Atmospheric phosphorus pollution is largely due to human activity, and it’s something that we should not ignore.”

The research paper, Is atmospheric phosphorus pollution altering global alpine lake stoichiometry? can be downloaded here: http://onlinelibrary.wiley.com/doi/10.1002/2015GB005137/full

—30—

Media Contact

Patty Wellborn
E-mail: patty.wellborn@ubc.ca

Content type: Media Release
More content from: Irving K Barber School of Arts and Sciences (prior July 2020)

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About UBC Okanagan

UBC’s Okanagan campus is an innovative hub for research and learning founded in partnership with local Indigenous peoples, the Syilx Okanagan Nation, in whose traditional, ancestral and unceded territory the campus resides. The most established and influential global rankings all consistently place UBC in the top five per cent of universities in the world, and among the top three Canadian universities.

The Okanagan campus combines a globally recognized UBC education with a tight-knit and entrepreneurial community that welcomes students and faculty from around the world in British Columbia’s stunning Okanagan Valley. For more visit ok.ubc.ca.

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