Data för: Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden Data for: Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden 2026-365-1 https://doi.org/10.5878/gyjb-np60 Swedish National Data Service Svensk nationell datatjänst Landing page Data för: Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden Data for: Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden 2026-365-1 https://doi.org/10.5878/gyjb-np60 10.1016/j.envpol.2026.129418 Faxneld, Suzanne Faxneld, Suzanne Sköld, Martin Sköld, Martin Swedish National Data Service Svensk nationell datatjänst Landing page OTTERS environmental contaminant perfluoroalkyl acids perfluoralkylsyror Lutra lutra utter Spatiotemporal data on concentrations of PFAS compounds in Otters, described in Faxneld et.al. 2026, (https://doi.org/10.1016/j.envpol.2026.129418). Data saved in csv-files with fields: accnr: (Accession number, unique identifier of individual) year: Sampling year decimal_date: Date in decimal format sex: Male (M) or Female (F) age: Subadult or Adult long, lat: Coordinates in WGS84 X, Y: Coordinates in SWEREF 99 TM (used for spatial smooths) name: Short name of compound, TP=Total PFAS long_name: Long name of compound group: Compound group value: Concentration (ng/g wet weight) is_censored: TRUE if value is reported as an upper bound (LOD/LOQ), else FALSE rpf: Relative potency factor of compound Spatiotemporala data över koncentrationer av PFAS-ämnen i uttrar, beskrivna i Faxneld m.fl. (2026), (https://doi.org/10.1016/j.envpol.2026.129418). Data lagras i CSV-filer med följande variabler: accnr: Accessionnummer (unikt identifieringsnummer för varje individ) year: Provtagningsår decimal_date: Datum i decimalformat sex: Kön, M (hane) eller F (hona) age: Åldersklass, subadult (ej könsmogen) eller adult (vuxen) long, lat: Geografiska koordinater i WGS84 X, Y: Koordinater i SWEREF 99 TM (används för spatial utjämning) name: Kortnamn för ämnet, TP = total PFAS long_name: Ämnets fullständiga namn group: Ämnesgrupp value: Koncentration (ng/g våtvikt) is_censored: TRUE om värdet anges som en övre gräns (detektionsgräns, LOD, eller kvantifieringsgräns, LOQ), annars FALSE rpf: Ämnets relativa potensfaktor Sweden Sverige Denmark Danmark Norway Norge Numeric Text Access to data through SND. Data are freely accessible. Åtkomst till data via SND. Data är fritt tillgängliga. openAccess Suzanne Faxneld, Martin Sköld, Merle M. Plassmann, Jonathan P. Benskin, Morten Elmeros, Anna M. Roos, Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden, Environmental Pollution, 2026, 129418, ISSN 0269-7491, https://doi.org/10.1016/j.envpol.2026.129418 Suzanne Faxneld, Martin Sköld, Merle M. Plassmann, Jonathan P. Benskin, Morten Elmeros, Anna M. Roos, Temporal and spatial variability of per- and polyfluoroalkyl substances (PFAS) in otters (Lutra lutra) from Sweden, Environmental Pollution, 2026, 129418, ISSN 0269-7491, https://doi.org/10.1016/j.envpol.2026.129418 10.1016/j.envpol.2026.129418 2026