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    Home Pollution

    High PFAS Levels in Norwegian Arctic Ice Pose New Risk to Wildlife

    By: Cristen Hemingway Jaynes
    Published: February 13, 2023
    Edited by Chris McDermott
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    A herd of reindeer standing in the Norwegian Arctic
    A herd of reindeer in Svalbard, Spitsbergen Island, Norway. Paul Souders / Stone / Getty Images
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    The Norwegian Arctic is home to many animal species, including caribou, narwhals, arctic foxes, polar bears and seals, as well as the fish and plankton on which many of them feed. Recently, disturbingly high levels of toxic PFAS “forever chemicals” have been found contaminating ice in the region, which may present a serious problem for wildlife.

    Measurements taken during a study led by Oxford University researchers found 26 PFAS chemical compounds in the ice around Svalbard, Norway, reported The Guardian.

    Melting ice can carry the harmful chemicals downstream from glaciers into tundra and Arctic fjords, contaminating their ecosystems. The mixture of toxins pollutes the food web from plankton all the way up to apex animals.

    “There’s a washout of contaminants that occurs seasonally… and some PFAS seem to be mobile during melts, which could be important to ecosystems downstream,” said lead author of the study Dr. William Hartz, as The Guardian reported.

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    Hartz noted a “doubling up effect” on animals as ice melts and temperatures in Svalbard heat up faster than the planet’s average due to climate change.

    “[S]easonal snowmelt and runoff from post-industrial accumulation on glaciers could be a significant seasonal source of PFAS to ecosystems in Arctic fjords,” the authors of the study wrote.

    The study, “Levels and distribution profiles of Per- and Polyfluoroalkyl Substances (PFAS) in a high Arctic Svalbard ice core,” was published in the journal Science of the Total Environment.

    PFAS are used to make consumer products that are resistant to stains, heat and water, but they don’t break down naturally in the environment, hence the term “forever chemicals.” They consist of a class of around 12,000 chemicals that have been associated with kidney and liver problems, cancer, increased asthma risk and decreased fertility, among other complications.

    PFOA and PFOS — considered to be two of the most dangerous PFAS compounds — were found in the ice in amounts higher than the U.S. safe drinking water limits, reported The Guardian. Levels of the refrigerant byproduct TFA were also found at especially high levels.

    High PFAS levels have been found in the bloodstreams of polar bears, according to WION.

    “As a polar bear, you have exposure to toxic manmade chemicals, and stresses from a changing habitat,” Hartz said, as The Guardian reported.

    Chlorofluorocarbons (CFCs) — a greenhouse gas used in the manufacture of aerosol sprays, packing materials and refrigerants — were phased out by many countries following the Montreal Protocol of 1987, and were eventually replaced with hydrofluoro-olefin (HFOs).

    HFOs are another greenhouse gas that can break down into TFA. TFA have the ability to move throughout the world, and the researchers found that levels of TFA in the Arctic are increasing.

    “[L]imited knowledge about the safe levels of TFA in the environment needs addressing,” the authors said in the study.

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      Cristen Hemingway Jaynes

      Cristen is a writer of fiction and nonfiction. She holds a JD and an Ocean & Coastal Law Certificate from University of Oregon School of Law and an MA in Creative Writing from Birkbeck, University of London. She is the author of the short story collection The Smallest of Entryways, as well as the travel biography, Ernest’s Way: An International Journey Through Hemingway’s Life.
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