Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia
Accepted manuscript. Final version published in Environmental Science & Technology, 53 (4), 1834-1843, is available at https://doi.org/10.1021/acs.est.8b06399. Temporally (1965–2015) and spatially (55°–70°N) extensive records of total mercury (Hg) in freshwater fish showed consistent declines in...
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American Chemical Society
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Online Access: | https://hdl.handle.net/10037/16392 https://doi.org/10.1021/acs.est.8b06399 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16392 2023-05-15T14:30:12+02:00 Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia Braaten, Hans Fredrik Veiteberg Åkerblom, Staffan Kahilainen, Kimmo Kalevi Rask, Martti Vuorenmaa, Jussi Mannio, Jaakko Malinen, Tommi Lydersen, Espen Poste, Amanda Amundsen, Per-Arne Kashulin, Nikolai Kashulina, Tatiana Terentjev, Petr Christensen, Guttorm de Wit, Heleen 2019-01-14 https://hdl.handle.net/10037/16392 https://doi.org/10.1021/acs.est.8b06399 eng eng American Chemical Society Environmental Science and Technology Norges forskningsråd: 243644 info:eu-repo/grantAgreement/RCN/MILJØFORSK/243644/Norway/Climatic, abiotic and biotic drivers of mercury in freshwater fish in northern ecoystems/Climer/ Braaten, H.F.V., Åkerblom, S., Kahilainen, K.K., Rask, M., Vuorenmaa, J., Mannio, J. . de Wit, H.A. (2019). Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia. Environmental Science and Technology, 53 (4), 1834-1843. https://doi.org/10.1021/acs.est.8b06399 FRIDAID 1666045 doi:10.1021/acs.est.8b06399 0013-936X 1520-5851 https://hdl.handle.net/10037/16392 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Journal article Tidsskriftartikkel Peer reviewed 2019 ftunivtroemsoe https://doi.org/10.1021/acs.est.8b06399 2021-06-25T17:56:52Z Accepted manuscript. Final version published in Environmental Science & Technology, 53 (4), 1834-1843, is available at https://doi.org/10.1021/acs.est.8b06399. Temporally (1965–2015) and spatially (55°–70°N) extensive records of total mercury (Hg) in freshwater fish showed consistent declines in boreal and subarctic Fennoscandia. The database contains 54 560 fish entries (n: pike > perch ≫ brown trout > roach ≈ Arctic charr) from 3132 lakes across Sweden, Finland, Norway, and Russian Murmansk area. 74% of the lakes did not meet the 0.5 ppm limit to protect human health. However, after 2000 only 25% of the lakes exceeded this level, indicating improved environmental status. In lakes where local pollution sources were identified, pike and perch Hg concentrations were significantly higher between 1965 and 1990 compared to values after 1995, likely an effect of implemented reduction measures. In lakes where Hg originated from long-range transboundary air pollution (LRTAP), consistent Hg declines (3–7‰ per year) were found for perch and pike in both boreal and subarctic Fennoscandia, suggesting common environmental controls. Hg in perch and pike in LRTAP lakes showed minimal declines with latitude, suggesting that drivers affected by temperature, such as growth dilution, counteracted Hg loading and food web exposure. We recommend that future fish Hg monitoring sampling design should include repeated sampling and collection of pollution history, water chemistry, fish age, and stable isotopes to enable evaluation of emission reduction policies. Article in Journal/Newspaper Arctic charr Arctic Fennoscandia Human health Subarctic University of Tromsø: Munin Open Research Archive Arctic Murmansk Norway Environmental Science & Technology 53 4 1834 1843 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Braaten, Hans Fredrik Veiteberg Åkerblom, Staffan Kahilainen, Kimmo Kalevi Rask, Martti Vuorenmaa, Jussi Mannio, Jaakko Malinen, Tommi Lydersen, Espen Poste, Amanda Amundsen, Per-Arne Kashulin, Nikolai Kashulina, Tatiana Terentjev, Petr Christensen, Guttorm de Wit, Heleen Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
Accepted manuscript. Final version published in Environmental Science & Technology, 53 (4), 1834-1843, is available at https://doi.org/10.1021/acs.est.8b06399. Temporally (1965–2015) and spatially (55°–70°N) extensive records of total mercury (Hg) in freshwater fish showed consistent declines in boreal and subarctic Fennoscandia. The database contains 54 560 fish entries (n: pike > perch ≫ brown trout > roach ≈ Arctic charr) from 3132 lakes across Sweden, Finland, Norway, and Russian Murmansk area. 74% of the lakes did not meet the 0.5 ppm limit to protect human health. However, after 2000 only 25% of the lakes exceeded this level, indicating improved environmental status. In lakes where local pollution sources were identified, pike and perch Hg concentrations were significantly higher between 1965 and 1990 compared to values after 1995, likely an effect of implemented reduction measures. In lakes where Hg originated from long-range transboundary air pollution (LRTAP), consistent Hg declines (3–7‰ per year) were found for perch and pike in both boreal and subarctic Fennoscandia, suggesting common environmental controls. Hg in perch and pike in LRTAP lakes showed minimal declines with latitude, suggesting that drivers affected by temperature, such as growth dilution, counteracted Hg loading and food web exposure. We recommend that future fish Hg monitoring sampling design should include repeated sampling and collection of pollution history, water chemistry, fish age, and stable isotopes to enable evaluation of emission reduction policies. |
format |
Article in Journal/Newspaper |
author |
Braaten, Hans Fredrik Veiteberg Åkerblom, Staffan Kahilainen, Kimmo Kalevi Rask, Martti Vuorenmaa, Jussi Mannio, Jaakko Malinen, Tommi Lydersen, Espen Poste, Amanda Amundsen, Per-Arne Kashulin, Nikolai Kashulina, Tatiana Terentjev, Petr Christensen, Guttorm de Wit, Heleen |
author_facet |
Braaten, Hans Fredrik Veiteberg Åkerblom, Staffan Kahilainen, Kimmo Kalevi Rask, Martti Vuorenmaa, Jussi Mannio, Jaakko Malinen, Tommi Lydersen, Espen Poste, Amanda Amundsen, Per-Arne Kashulin, Nikolai Kashulina, Tatiana Terentjev, Petr Christensen, Guttorm de Wit, Heleen |
author_sort |
Braaten, Hans Fredrik Veiteberg |
title |
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
title_short |
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
title_full |
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
title_fullStr |
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
title_full_unstemmed |
Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia |
title_sort |
improved environmental status: 50 years of declining fish mercury levels in boreal and subarctic fennoscandia |
publisher |
American Chemical Society |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16392 https://doi.org/10.1021/acs.est.8b06399 |
geographic |
Arctic Murmansk Norway |
geographic_facet |
Arctic Murmansk Norway |
genre |
Arctic charr Arctic Fennoscandia Human health Subarctic |
genre_facet |
Arctic charr Arctic Fennoscandia Human health Subarctic |
op_relation |
Environmental Science and Technology Norges forskningsråd: 243644 info:eu-repo/grantAgreement/RCN/MILJØFORSK/243644/Norway/Climatic, abiotic and biotic drivers of mercury in freshwater fish in northern ecoystems/Climer/ Braaten, H.F.V., Åkerblom, S., Kahilainen, K.K., Rask, M., Vuorenmaa, J., Mannio, J. . de Wit, H.A. (2019). Improved Environmental Status: 50 Years of Declining Fish Mercury Levels in Boreal and Subarctic Fennoscandia. Environmental Science and Technology, 53 (4), 1834-1843. https://doi.org/10.1021/acs.est.8b06399 FRIDAID 1666045 doi:10.1021/acs.est.8b06399 0013-936X 1520-5851 https://hdl.handle.net/10037/16392 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1021/acs.est.8b06399 |
container_title |
Environmental Science & Technology |
container_volume |
53 |
container_issue |
4 |
container_start_page |
1834 |
op_container_end_page |
1843 |
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1766304085945876480 |