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Public concerns over presumed metal and radionuclide pollution:testing a possible link to ovine hepatic melanosis in South Greenland

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Τίτλος: Public concerns over presumed metal and radionuclide pollution:testing a possible link to ovine hepatic melanosis in South Greenland
Συγγραφείς: Hansen, Violeta, Nielsen, Ole Lerberg, Mosbech, Anders, Fabricius, Sandra Drewes, Sonne, Christian, Søndergaard, Jens, Clausen, Daniel Spelling, Johansen, Kasper Lambert, van Beest, Floris, Leifsson, Páll Skúli, Enemark, Heidi Larsen
Πηγή: Hansen , V , Nielsen , O L , Mosbech , A , Fabricius , S D , Sonne , C , Søndergaard , J , Clausen , D S , Johansen , K L , van Beest , F , Leifsson , P S & Enemark , H L 2026 , ' Public concerns over presumed metal and radionuclide pollution : testing a possible link to ovine hepatic melanosis in South Greenland ' , Environmental Monitoring and Assessment , vol. 198 , 161 . https://doi.org/10.1007/s10661-025-14945-z
Έτος έκδοσης: 2026
Συλλογή: University of Copenhagen: Research / Forskning ved Københavns Universitet
Θεματικοί όροι: Animals, Greenland/epidemiology, Sheep, Melanosis/epidemiology, Radioisotopes/analysis, Metals/analysis, Case-Control Studies, Environmental Monitoring, Liver, Environmental Pollution/statistics & numerical data, Environmental Exposure/statistics & numerical data, Environmental Pollutants/analysis, Sheep Diseases/epidemiology
Περιγραφή: In South Greenland, public concerns have linked "black livers" in sheep to presumed environmental pollution from the Kvanefjeld mining exploration project. Elevated concentrations of metals and radionuclides in the area reflect natural geochemistry and weathering processes, not pollution from exploration activities. However, in response, we conducted a preliminary case-control study to diagnose the condition, investigate links between liver discoloration and environmental concentrations of metals and radionuclides, and to estimate the annual effective dose to the public from polonium-210 (210Po) ingestion via sheep and lamb liver consumption. We also evaluated the prevalence of acquired melanosis, grazing and herd effects, and their association with carcass quality and disease markers. Histological analysis confirmed acquired melanosis in affected liver samples. No statistically significant differences in concentrations of chemical elements or radionuclides (including 210Po and 210Pb) were found between case and control groups, across age groups, grazing areas, or farms. Except for the most exposed children (10% percentile), the estimated annual effective dose to adults and children from 210Po ingestion in black and healthy livers remained below the world average of 120 µSv due to the ingestion of naturally occurring radionuclides. The overall prevalence of ovine acquired melanosis based on a large sample size was 10.59%, with herd prevalence ranging from 0% to 51.79%. Age-specific prevalence was 10.38% in lambs and 13.40% in adult sheep. Acquired melanosis was negatively correlated with fat and muscle content in carcasses. The consumption of sheep livers from South Greenland does not appear to pose a toxicological or radiological risk.
Τύπος εγγράφου: article in journal/newspaper
Περιγραφή αρχείου: application/pdf
Γλώσσα: English
DOI: 10.1007/s10661-025-14945-z
Διαθεσιμότητα: https://researchprofiles.ku.dk/da/publications/97d05223-9814-4fb5-bd5e-45c9b1d3eef3
https://doi.org/10.1007/s10661-025-14945-z
https://curis.ku.dk/ws/files/532082963/Public_concerns_over_presumed_metal_and_radionuclide_pollution.pdf
Rights: info:eu-repo/semantics/openAccess
Αριθμός Καταχώρησης: edsbas.12478F5F
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  Data: Public concerns over presumed metal and radionuclide pollution:testing a possible link to ovine hepatic melanosis in South Greenland
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  Data: <searchLink fieldCode="AR" term="%22Hansen%2C+Violeta%22">Hansen, Violeta</searchLink><br /><searchLink fieldCode="AR" term="%22Nielsen%2C+Ole+Lerberg%22">Nielsen, Ole Lerberg</searchLink><br /><searchLink fieldCode="AR" term="%22Mosbech%2C+Anders%22">Mosbech, Anders</searchLink><br /><searchLink fieldCode="AR" term="%22Fabricius%2C+Sandra+Drewes%22">Fabricius, Sandra Drewes</searchLink><br /><searchLink fieldCode="AR" term="%22Sonne%2C+Christian%22">Sonne, Christian</searchLink><br /><searchLink fieldCode="AR" term="%22Søndergaard%2C+Jens%22">Søndergaard, Jens</searchLink><br /><searchLink fieldCode="AR" term="%22Clausen%2C+Daniel+Spelling%22">Clausen, Daniel Spelling</searchLink><br /><searchLink fieldCode="AR" term="%22Johansen%2C+Kasper+Lambert%22">Johansen, Kasper Lambert</searchLink><br /><searchLink fieldCode="AR" term="%22van+Beest%2C+Floris%22">van Beest, Floris</searchLink><br /><searchLink fieldCode="AR" term="%22Leifsson%2C+Páll+Skúli%22">Leifsson, Páll Skúli</searchLink><br /><searchLink fieldCode="AR" term="%22Enemark%2C+Heidi+Larsen%22">Enemark, Heidi Larsen</searchLink>
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  Data: Hansen , V , Nielsen , O L , Mosbech , A , Fabricius , S D , Sonne , C , Søndergaard , J , Clausen , D S , Johansen , K L , van Beest , F , Leifsson , P S & Enemark , H L 2026 , ' Public concerns over presumed metal and radionuclide pollution : testing a possible link to ovine hepatic melanosis in South Greenland ' , Environmental Monitoring and Assessment , vol. 198 , 161 . https://doi.org/10.1007/s10661-025-14945-z
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  Data: 2026
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  Data: University of Copenhagen: Research / Forskning ved Københavns Universitet
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  Data: <searchLink fieldCode="DE" term="%22Animals%22">Animals</searchLink><br /><searchLink fieldCode="DE" term="%22Greenland%2Fepidemiology%22">Greenland/epidemiology</searchLink><br /><searchLink fieldCode="DE" term="%22Sheep%22">Sheep</searchLink><br /><searchLink fieldCode="DE" term="%22Melanosis%2Fepidemiology%22">Melanosis/epidemiology</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes%2Fanalysis%22">Radioisotopes/analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Metals%2Fanalysis%22">Metals/analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Case-Control+Studies%22">Case-Control Studies</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+Monitoring%22">Environmental Monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Liver%22">Liver</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+Pollution%2Fstatistics+%26+numerical+data%22">Environmental Pollution/statistics & numerical data</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+Exposure%2Fstatistics+%26+numerical+data%22">Environmental Exposure/statistics & numerical data</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+Pollutants%2Fanalysis%22">Environmental Pollutants/analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Sheep+Diseases%2Fepidemiology%22">Sheep Diseases/epidemiology</searchLink>
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  Data: In South Greenland, public concerns have linked "black livers" in sheep to presumed environmental pollution from the Kvanefjeld mining exploration project. Elevated concentrations of metals and radionuclides in the area reflect natural geochemistry and weathering processes, not pollution from exploration activities. However, in response, we conducted a preliminary case-control study to diagnose the condition, investigate links between liver discoloration and environmental concentrations of metals and radionuclides, and to estimate the annual effective dose to the public from polonium-210 (210Po) ingestion via sheep and lamb liver consumption. We also evaluated the prevalence of acquired melanosis, grazing and herd effects, and their association with carcass quality and disease markers. Histological analysis confirmed acquired melanosis in affected liver samples. No statistically significant differences in concentrations of chemical elements or radionuclides (including 210Po and 210Pb) were found between case and control groups, across age groups, grazing areas, or farms. Except for the most exposed children (10% percentile), the estimated annual effective dose to adults and children from 210Po ingestion in black and healthy livers remained below the world average of 120 µSv due to the ingestion of naturally occurring radionuclides. The overall prevalence of ovine acquired melanosis based on a large sample size was 10.59%, with herd prevalence ranging from 0% to 51.79%. Age-specific prevalence was 10.38% in lambs and 13.40% in adult sheep. Acquired melanosis was negatively correlated with fat and muscle content in carcasses. The consumption of sheep livers from South Greenland does not appear to pose a toxicological or radiological risk.
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