Perfluoroalkyl substances detected in the world's southernmo

Details of Research

TitlePerfluoroalkyl substances detected in the worldÅ› southernmost marine mammal, the Weddell seal (Leptonychotes weddellii)AbstractThis study investigates concentrations of 18 perfluoroalkyl substances (PFAS) in blood plasma of adult lactating Weddell seals (Leptonychotes weddellii) (n = 10) from McMurdo Sound, Antarctica. Perfluoroundecanoic acid (PFUnDA) was detected in all samples at concentrations ranging from 0.08 to 0.23 ng/ml. Perfluorooctane sulfonate (PFOS), perfluorohexanoate (PFHxA) and perfluorotridecanoate (PFTriDA) were sporadically detected, while the remaining compounds were below the limit of detection. This is the first report of detectible concentrations of PFASs in an endemic Antarctic marine mammal species. We suggest that the pollutants have been subjected to long range atmospheric transportation and/or derive from a local source. A review of these and published data indicate that perfluoroalkyl carboxylates (PFCAs) dominate in biotic PFAS patterns in species feeding south of the Antarctic Circumpolar Current (ACC), whereas PFOS was the major PFAS detected in species feeding predominantly north of the current. ©Copyright 2014 Elsevier Ltd. All rights reserved.AcknowledgementsThis field work was supported by the United States Antarctic Program (USAP) and funded by the National Science Foundation Office of Polar Programs (Project number B-024; NSF/OPP 05-38592). The contaminant analyses were funded by the Norwegian Polar Institute. Thanks are also extended to Morten Wexels Riser, Dan Borritt, Mike Lara and Daryl Boness for their contributions to the field work, to Arntraut Götsch for her help with the chemical analyses and to Robert Garrott for providing ages of our animals.

Details

1st AuthorRoutti, H.AuthorRoutti, H.Krafft, B.Herzke, D.Eisert, R.Oftedal, O.Year2015JournalEnvironmental PollutionVolume197Pages62-67DOI10.1016/j.envpol.2014.11.026 2015URLhttps://www.scopus.com/inward/recor.....81299824036502ca345c271aaKeywordsCarboxylationOcean currentsPollution, Local pollutionsLong range transportMcMurdoPerfluoroalkyl substancesWeddell seals, Mammals, chemical compoundpefluorononanoateperfluoroalkyl carboxylateperfluoroalkyl substanceperfluoroalkyl sulfonateperfluorobutane sulfonateperfluorobutanoateperfluoroctanoateperfluorodecane sulfonateperfluorodecanoateperfluorododecanoateperfluoroheptanoateperfluorohexane sulfonateperfluorohexanoateperfluorooctane sulfonamideperfluorooctanesulfonic acidperfluoropentanoateperfluorotetradecanoateperfluorotridecanoateperfluoroundecanoateperfluoroundecanoic acidunclassified drug, atmospheric transportbioaccumulationchemical pollutantconcentration (composition)long range transportpinnipedplasmapollutant sourcepollutant transportpollution exposure, animal experimentanimal tissueArticleatmospheric transportblood levelblood samplingconcentration (parameters)controlled studyLeptonychotes weddelliilimit of detectionmarine speciesnonhumanpollutantseal, AntarcticaEast AntarcticaMcMurdo Sound, Leptonychotes weddelliiMammalia, rank3Author KeywordsLocal pollutionLong-range transportMcMurdoPerfluoroalkyl substancesWeddell seal

Other

TypeArticleCitationRoutti, H., Krafft, B., Herzke, D., Eisert, R. and Oftedal, O. (2015) Perfluoroalkyl substances detected in the world's southernmost marine mammal, the Weddell seal (Leptonychotes weddellii). Environmental Pollution, 197: 62-67 doi:10.1016/j.envpol.2014.11.026 2015 IdentifierRoutti2015Relevancerank3