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  • 1.
    Ali, Imran
    et al.
    Stockholms universitet.
    Kremer, Reinhard K.
    Skogby, Henrik
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Johnsson, Mats
    Synthesis and Magnetic Properties of the Ternary OxofluorideFe3Sb4O6F62020Inngår i: European Journal of Inorganic Chemistry, ISSN 1434-1948, E-ISSN 1099-1948, s. 3746-3752Artikkel i tidsskrift (Fagfellevurdert)
  • 2.
    Bellucci, Jeremy
    et al.
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Joshua, Snape
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Whitehouse, Martin
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Nemchin, Alexander
    Direct Pb Isotopic Analysis of a Nuclear Fallout Debris Particle from the Trinity Nuclear Test2017Inngår i: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 89, s. 1887-1891Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Pb isotope composition of a nuclear fallout debris particle has been directly measured in post-detonation materials produced during the Trinity nuclear test by a secondary ion mass spectrometry (SIMS) scanning ion image technique (SII). This technique permits the visual assessment of the spatial distribution of Pb and can be used to obtain full Pb isotope compositions in user-defined regions in a 70 μm × 70 μm analytical window. In conjunction with backscattered electron (BSE) and energy-dispersive spectroscopy (EDS) mapping of the same particle, the Pb measured in this fallout particle cannot be from a major phase in the precursor arkosic sand. Similarly, the Pb isotope composition of the particle is resolvable from the surrounding glass at the 2σ uncertainty level (where σ represents the standard deviation). The Pb isotope composition measured in the particle here is in excellent agreement with that inferred from measurements of green and red trinitite, suggesting that these types of particles are responsible for the Pb isotope compositions measured in both trinitite glasses. 

    Fulltekst (pdf)
    fulltext
  • 3.
    Berger, Michelle L.
    et al.
    Shaw Institute.
    Shaw, Susan D.
    Shaw Institute.
    Rolsky, Charles B.
    Shaw Institute.
    Chen, Da
    Sun, Jiachen
    Rosing-Asvid, Aqqalu
    Grønlands Naturinstitut.
    Granquist, Sandra Magdalena
    Simon, Malene
    Grønlands Klimaforskningscenter.
    Bäcklin, Britt-Marie
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Roos, Anna Maria
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Alternative and legacy flame retardants in marine mammals from three northern ocean regions2023Inngår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 335, s. 122255-122255, artikkel-id 122255Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Flame retardants are globally distributed contaminants that have been linked to negative health effects in humans and wildlife. As top predators, marine mammals bioaccumulate flame retardants and other contaminants in their tissues which is one of many human-imposed factors threatening population health. While some flame retardants, such as the polybrominated diphenyl ethers (PBDE), have been banned because of known toxicity and environmental persistence, limited data exist on the presence and distribution of current-use alternative flame retardants in marine mammals from many industrialized and remote regions of the world. Therefore, this study measured 44 legacy and alternative flame retardants in nine marine mammal species from three ocean regions: the Northwest Atlantic, the Arctic, and the Baltic allowing for regional, species, age, body condition, temporal, and tissue comparisons to help understand global patterns. PBDE concentrations were 100–1000 times higher than the alternative brominated flame retardants (altBFRs) and Dechloranes. 2,2′,4,5,5′-pentabromobiphenyl (BB-101) and hexabromobenzene (HBBZ) were the predominant altBFRs, while Dechlorane-602 was the predominant Dechlorane. This manuscript also reports only the second detection of hexachlorocyclopentadienyl-dibromocyclooctane (HCDBCO) in marine mammals. The NW Atlantic had the highest PBDE concentrations followed by the Baltic and Arctic which reflects greater historical use of PBDEs in North America compared to Europe and greater industrialization of North America and Baltic countries compared to the Arctic. Regional patterns for other compounds were more complicated, and there were significant interactions among species, regions, body condition and age class. Lipid-normalized PBDE concentrations in harbor seal liver and blubber were similar, but HBBZ and many Dechloranes had higher concentrations in liver, indicating factors other than lipid dynamics affect the distribution of these compounds. The health implications of contamination by this mixture of compounds are of concern and require further research.

    Fulltekst (pdf)
    fulltext
  • 4.
    Björling, Thomas
    et al.
    Stockholms universitet.
    Noréus, Dag
    Stockholms universitet.
    Jansson, Kjell
    Stockholms universitet.
    Andersson, Magnus
    Kungliga Tekniska Högskolan.
    Leonova, Ekaterina
    Stockholms universitet.
    Edén, Mattias
    Stockholms universitet.
    Hålenius, Ulf
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Häussermann, Ulrich
    Stockholms universitet.
    SrAlSiH: A polyanionic semiconductor hydride2005Inngår i: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 44, s. 7269-7273Artikkel i tidsskrift (Fagfellevurdert)
  • 5.
    Bonazzi, Paola
    et al.
    Università degli Studi di Firenze.
    Holtstam, Dan
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Bindi, Luca
    Università degli Studi di Firenze.
    Gatelite-supergroup minerals: recommended nomenclature and review2019Inngår i: European journal of mineralogy, ISSN 0935-1221, E-ISSN 1617-4011, Vol. 31, s. 173-181Artikkel i tidsskrift (Fagfellevurdert)
    Fulltekst (pdf)
    fulltext
  • 6.
    Bosi, Ferdinando
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Bond valence at mixed occupancy sites. I. Regularpolyhedra2014Inngår i: ACTA CRYSTALLOGRAPHICA. SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS, ISSN 2052-5206, Vol. 70, s. 864-870Artikkel i tidsskrift (Fagfellevurdert)
  • 7.
    Bosi, Ferdinando
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Mean bond length variation in crystal structures: a bond valence approach2014Inngår i: ACTA CRYSTALLOGRAPHICA. SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS, ISSN 2052-5206, Vol. 70, s. 697-704Artikkel i tidsskrift (Fagfellevurdert)
  • 8. Chenery, S.
    et al.
    Williams, C. T.
    Elliott, T. A.
    Forey, P. L.
    Werdelin, Lars
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Determination of rare earth elements in biological and mineral apatite by EPMA and LAMP-ICP-MS1996Inngår i: Microchimica Acta, ISSN 0026-3672, E-ISSN 1436-5073, Vol. 13, nr suppl., s. 259-269Artikkel i tidsskrift (Fagfellevurdert)
  • 9. Coward, Andrew
    et al.
    Mays, Chris
    Naturhistoriska riksmuseet, Enheten för paleobiologi.
    Patti, Antonio
    Stilwell, Jeffrey
    O’Dell, Luke
    Viegas, Pedro
    Taphonomy and chemotaxonomy of Eocene amber from southeastern Australia2018Inngår i: Organic Geochemistry, ISSN 0146-6380, E-ISSN 1873-5290, Vol. 118, s. 103-115Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Amber is a complex, organic polymer that offers unparalleled utility as a preservation medium, providing insights into past organisms and environments. However, under specific circumstances, this information can be compromised through alteration of the amber structure. Understanding the degradation of amber in the geosphere could improve prospecting techniques and maximise the quality and validity of chemical information from altered samples. This study analysed 114 amber samples retrieved from two new Eocene Australian deposits at Strahan, Tasmania and Anglesea, Victoria using a combination of attenuated total reflectance Fourier transform infrared and solid-state 13C cross-polarised magic angle spinning nuclear magnetic resonance spectroscopy. Results identified both Class Ib polylabdanoid and Class II cadinene-based amber. The presence of Class II amber in Australia suggests one of two possibilities: (1) a local Dipterocarpaceae source, the primary producer of Class II resins, despite the absence of this family from the Australian Eocene fossil record; or (2) a local, unidentified botanical source of cadinene-based amber. A third alternative, that Class II amber was transported to Australia from Southeast Asia via ocean currents, is rejected. Taphonomic analysis revealed four mechanisms of alteration prevalent in amber across the two study regions, with evidence of oxidation and metal carboxylate formation. Both the nature and extent of these alterations were found to vary significantly between classes I and II, suggesting that amber class may play a defining role in determining the chemical pathways by which amber degrades. Of note was the high proportion of amber that exhibited no significant chemical changes despite extensive visible alteration features, suggesting the integrity of palaeobiological and palaeoenvironmental information in these samples may be preserved.

    Fulltekst (pdf)
    fulltext
  • 10. Dahlberg, Anna-Karin
    et al.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Legradi, Jessica
    Legler, Juliette
    Asplund, Lillemor
    Anthropogenic and naturally produced brominated substances in Baltic herring (Clupea harengus membras) from two sites in the Baltic Sea.2016Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 144Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In the eutrophicated Baltic Sea, several naturally produced hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have been found in marine biota. OH-PBDEs are toxic to adult and developing zebrafish and shown to be potent disruptors of oxidative phosphorylation (OXPHOS). Disturbed OXPHOS can result in altered energy metabolism and weight loss. In herring, the concentration of OH-PBDEs (i.e. 2'-OH-BDE68 and 6-OH-BDE47) has increased during the period 1980-2010 in the Baltic Proper. Over the same time period, the condition and fat content in Baltic herring have decreased. Given the toxicity and increasing trends of OH-PBDEs in Baltic herring it is important to further assess the exposure to OH-PBDEs in Baltic herring. In this study, the concentrations of OH-PBDEs and related brominated substances i.e. polybrominated phenols (PBPs), polybrominated anisoles (PBAs), methoxylated polybrominated diphenyl ethers (MeO-PBDEs) and polybrominated diphenyl ethers (PBDEs) were measured in herring sampled in the northern Baltic Proper (Askö, n = 12) and the southern Bothnian Sea (Ängskärsklubb, n = 12). The geometric mean (GM) concentrations (ng/g l.w.) at Askö and Ängskärsklubb were; Σ2PBPs: 4.3 and 9.6, Σ(2)PBAs: 34 and 20, Σ(6)OH-PBDEs: 9.4 and 10, Σ(7)MeO-PBDEs: 42 and 150, Σ(6)PBDEs: 54 and 27, respectively. 6-OH-BDE47 dominated the OH-PBDE profile and comprised 87% (Askö) and 91% (Ängskärsklubb) of the ΣOH-PBDEs. At Ängskärsklubb the mean concentration of ΣMeO-PBDEs (150 ng/g l.w.) was 15 times higher than ΣOH-PBDEs. As other fish species are known to metabolically transform MeO-PBDEs to OH-PBDEs, high levels of MeO-PBDEs can be of concern as a precursor for more toxic OH-PBDEs in herring and their roe.

  • 11.
    Esmaeilzadeh, Saeid
    et al.
    Stockholms universitet.
    Hålenius, Ulf
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Valldor, Martin
    Technische Universität Braunschweig.
    Crystal growth, magnetic and optical properties of the ternary nitride MnSiN22006Inngår i: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 18, s. 2713-2718Artikkel i tidsskrift (Fagfellevurdert)
  • 12. Fång, Johan
    et al.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Winnberg, Ulrika
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bergman, Åke
    Spatial and temporal trends of the Stockholm Convention POPs in mothers' milk -- a global review.2015Inngår i: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 22, nr 12Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Persistent organic pollutants (POPs) have been of environmental and health concern for more than half a century and have their own intergovernmental regulation through the Stockholm Convention, from 2001. One major concern is the nursing child's exposure to POPs, a concern that has led to a very large number of scientific studies on POPs in mothers' milk. The present review is a report on the assessment on worldwide spatial distributions of POPs and of their temporal trends. The data presented herein is a compilation based on scientific publications between 1995 and 2011. It is evident that the concentrations in mothers' milk depend on the use of pesticides and industrial chemicals defined as POPs. Polychlorinated biphenyls (PCBs) and "dioxins" are higher in the more industrialized areas, Europe and Northern America, whereas pesticides are higher in Africa and Asia and polybrominated diphenyl ethers (PBDEs) are reported in higher concentrations in the USA. POPs are consequently distributed to women in all parts of the world and are thus delivered to the nursing child. The review points out several major problems in the reporting of data, which are crucial to enable high quality comparisons. Even though the data set is large, the comparability is hampered by differences in reporting. In conclusion, much more detailed instructions are needed for reporting POPs in mothers' milk. Temporal trend data for POPs in mothers' milk is scarce and is of interest when studying longer time series. The only two countries with long temporal trend studies are Japan and Sweden. In most cases, the trends show decreasing concentrations of POPs in mothers' milk. However, hexabromocyclododecane is showing increasing temporal concentration trends in both Japan and Sweden.

  • 13. Gebbink, Wouter A
    et al.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Berger, Urs
    Perfluoroalkyl Acids (PFAAs) and Selected Precursors in the Baltic Sea Environment: Do Precursors Play a Role in Food Web Accumulation of PFAAs?2016Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, nr 12Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The present study examined the presence of perfluoroalkyl acids (PFAAs) and selected precursors in the Baltic Sea abiotic environment and guillemot food web, and investigated the relative importance of precursors in food web accumulation of PFAAs. Sediment, water, zooplankton, herring, sprat, and guillemot eggs were analyzed for perfluoroalkane sulfonic acids (PFSAs; C4,6,8,10) and perfluoroalkyl carboxylic acids (PFCAs; C6-15) along with six perfluoro-octane sulfonic acid (PFOS) precursors and 11 polyfluoroalkyl phosphoric acid diesters (diPAPs). FOSA, FOSAA and its methyl and ethyl derivatives (Me- and EtFOSAA), and 6:2/6:2 diPAP were detected in sediment and water. While FOSA and the three FOSAAs were detected in all biota, a total of nine diPAPs were only detected in zooplankton. Concentrations of PFOS precursors and diPAPs exceeded PFOS and PFCA concentrations, respectively, in zooplankton, but not in fish and guillemot eggs. Although PFOS precursors were present at all trophic levels, they appear to play a minor role in food web accumulation of PFOS based on PFOS precursor/PFOS ratios and PFOS and FOSA isomer patterns. The PFCA pattern in fish could not be explained by the intake pattern based on PFCAs and analyzed precursors, that is, diPAPs. Exposure to additional precursors might therefore be a dominant exposure pathway compared to direct PFCA exposure for fish.

  • 14.
    Karlsson, Andreas
    et al.
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Holtstam, Dan
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Bindi, Luca
    Dipartimento di Scienze della Terra, Università degli Studi di Firenze.
    Bonazzi, Poala
    Dipartimento di Scienze della Terra, Università degli Studi di Firenze.
    Konrad-Schmolke, Matthias
    Department of Earth Sciences, University of Gothenburg.
    Adding complexity to the garnet supergroup: monteneveite, Ca3Sb5+2(Fe3+2Fe2+)O12, a new mineral from the Monteneve mine, Bolzano Province, Italy2020Inngår i: European journal of mineralogy, ISSN 0935-1221, E-ISSN 1617-4011, Vol. 32, nr 1, s. 77-87Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Monteneveite, ideally Ca3Sb5+2(Fe3+2Fe2+)O12, is a new member of the garnet supergroup (IMA2018-060). The mineral was discovered in a small specimen belonging to the Swedish Museum of Natural History coming from the now abandoned Monteneve Pb–Zn mine in Passiria Valley, Bolzano Province, Alto Adige (South Tyrol), Italy. The specimen consists of mainly magnetite, sphalerite, tetrahedrite-(Fe) and oxycalcioroméite. Monteneveite occurs as black, subhedral crystals with adamantine lustre. They are equidimensionaland up to 400 μm in size, with a subconchoidal fracture. Monteneveite is opaque, grey in reflected light,and isotropic under crossed polars. Measured reflectance values (%) at the four COM wavelengths are 12.6 (470 nm), 12.0 (546 nm), 11.6 (589 nm) and 11.4 (650 nm). The Vickers hardness (VHN100) is 1141 kg mm-2, corresponding to H = 6.5–7, and the calculated density is 4.72(1) g cm-3. A mean of 10 electron microprobe analyses gave (wt %) CaO 23.67, FeO 3.75, Fe2O3 29.54, Sb2O5 39.81, SnO2 2.22, ZnO 2.29, MgO 0.15, MnO 0.03 and CoO 0.03. The crystal chemical formula calculated on the basis of a total of eight cations and 12 anions, and taking into account the available structural and spectroscopic data, is (Ca2.97Mg0.03)Σ=3.00(Sb5+1.73Sn4+0.10Fe3+0.17)Σ=2.00(Fe3+2:43Fe2+0.37Zn0.20)Σ=3.00O12. The most significant chemical variations encounteredin the sample are related to a substitution of the type YSn4+ + ZFe3+  YSb5+ + ZFe2+. Mössbauer data obtained at RT and 77K indicate the presence of tetrahedrally coordinated Fe2+. Raman spectroscopy demonstrates that there is no measurable hydrogarnet component in monteneveite. The six strongest Bragg peaks in the powder X-ray diffraction pattern are [d (Å), I (%), (hkl)]: 4.45, 100, (220); 3.147, 60, (400); 2.814, 40, (420); 2.571, 80, (422); 1.993, 40, (620); 1.683, 60, (642). Monteneveite is cubic, space group Ia-3d, with a =12.6093(2) Å, V = 2004.8(1)Å3, and Z = 8. The crystal structure was refined up to R1 = 0.0197 for 305 reflections with Fo > 4σ (Fo) and 19 parameters. Monteneveite is related to the other Ca-, Sb- and Fe-bearing, nominally Si-free members of the bitikleite group, but it differs in that it is the only known garnet species with mixed trivalent and divalent cations (2:1) at the tetrahedral Z site. Textural and mineralogical evidence suggests that monteneveite formed during peak metamorphism (at ca. 600 ºC) during partial breakdown of tetrahedrite-(Fe) by reactions with carbonate, under relatively oxidizingconditions. The mineral is named after the type locality, the Monteneve (Schneeberg) mine.

  • 15.
    Lauria, Mélanie Z.
    et al.
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden.
    Sepman, Helen
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden;Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius Väg 16, 106 91 Stockholm, Sweden.
    Ledbetter, Thomas
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden;Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius Väg 16, 106 91 Stockholm, Sweden.
    Plassmann, Merle
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Simon, Malene
    Greenland Climate Research Centre, Greenland Institute of Natural Resources, 3900 Nuuk, Greenland.
    Benskin, Jonathan P.
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden.
    Kruve, Anneli
    Department of Environmental Science, Stockholm University, Svante Arrhenius Väg 8, 10691 Stockholm, Sweden;Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius Väg 16, 106 91 Stockholm, Sweden.
    Closing the Organofluorine Mass Balance in Marine Mammals Using Suspect Screening and Machine Learning-Based Quantification2024Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 58, nr 5, s. 2458-2467Artikkel i tidsskrift (Fagfellevurdert)
  • 16.
    Lelis, Martynas
    et al.
    Lithuanian Energy Institute, Kaunas.
    Milcius, Darius
    Lithuanian Energy Institute, Kaunas.
    Wirth, Emmanuel
    Lithuanian Energy Institute, Kaunas.
    Hålenius, Ulf
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Eriksson, Lars
    Stockholms universitet.
    Jansson, Kjell
    Stockholms universitet.
    Kadir, Karim
    Stockholms universitet.
    Ruan, Juanfang
    Stockholms universitet.
    Sato, Toyoto
    Tokohu University.
    Yokosawa, Tadahiro
    National Institute of Material Sciences, Tsukuba.
    Noréus, Dag
    Stockholms universitet.
    A mechanically switchable metal–insulator transition in Mg2NiH4 discovers a strain sensitive, nanoscale modulated resistivity connected to a stacking fault2010Inngår i: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 496, s. 81-86Artikkel i tidsskrift (Fagfellevurdert)
  • 17.
    Li, Zhong-Min
    et al.
    Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States.
    Roos, Anna Maria
    Naturhistoriska riksmuseet, Enheten för miljöanalys och -forskning. Department of Environmental Monitoring and Research, Swedish Museum of Natural History, Stockholm SE-10405, Sweden.
    Serfass, Thomas L.
    Department of Biology and Natural Resources, Frostburg State University, Frostburg, Maryland 21532, United States.
    Lee, Conner
    Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States.
    Kannan, Kurunthachalam
    Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States.
    Concentrations of 45 Per- and Polyfluoroalkyl Substances in North American River Otters (Lontra canadensis) from West Virginia, USA2024Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 58, nr 4, s. 2089-2101Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    North American river otters (Lontra canadensis) aretop predators in riverine ecosystems and are vulnerable to per- andpolyfluoroalkyl substance (PFAS) exposure. Little is known aboutthe magnitude of exposure and tissue distribution of PFAS in riverotters. We measured 45 PFAS in various tissues of 42 river otterscollected from several watersheds in the state of West Virginia,USA. The median concentrations of ΣAll (sum concentration of45 PFAS) varied among tissues in the following decreasing order:liver (931 ng/g wet weight) > bile > pancreas > lung > kidney >blood > brain > muscle. Perfluoroalkylsulfonates (PFSAs) were thepredominant compounds accounting for 58−75% of the totalconcentrations, followed by perfluoroalkyl carboxylates (PFCAs;21−35%). 8:2 fluorotelomer sulfonate (8:2 FTS), 10:2 FTS, and 6:2 chlorinated polyfluoroalkyl ether sulfonate were frequentlyfound in the liver (50−90%) and bile (96−100%), whereas hexafluoropropylene oxide dimer acid (HFPO-DA) was rarely found.The hepatic concentrations of ΣAll in river otters collected downstream of a fluoropolymer production facility located along theOhio River were 2-fold higher than those in other watersheds. The median whole body burden of ΣAll was calculated to be 1580μg. PFOS and perfluorooctanoic acid (PFOA) concentrations in whole blood of some river otters exceeded the human toxicityreference values, which warrant further studies.

  • 18. Meng, Xiang-Zhou
    et al.
    Venkatesan, Arjun K
    Ni, Yi-Lin
    Steele, Joshua C
    Wu, Ling-Ling
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bergman, Åke
    Halden, Rolf U
    Organic Contaminants in Chinese Sewage Sludge: A Meta-Analysis of the Literature of the Past 30 Years.2016Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 50, nr 11Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The production of sewage sludge is increasing in China but with unsafe disposal practices, causing potential risk to human health and the environment. Using literature from the past 30 years (N = 159), we conducted a meta-analysis of organic contaminants (OCs) in Chinese sludge. Most data were available from developed and populated regions, and no data were found for Tibet. Since 1987, 35 classes of chemicals consisting of 749 individual compounds and 1 mixture have been analyzed, in which antibiotics and polycyclic aromatic hydrocarbons (PAHs) were the most targeted analytes. For 13 classes of principal OCs (defined as chemicals detected in over five studies) in sludge, the median (expressed in nanograms per gram dry weight) was the highest for phthalate esters (27 900), followed by alkylphenol polyethoxylates (12 000), synthetic musks (5800), antibiotics (4240), PAHs (3490), ultraviolet stabilizers (670), bisphenol analogs (160), organochlorine pesticides (110), polybrominated diphenyl ethers (100), pharmaceuticals (84), hormones (69), perfluorinated compounds (21), and polychlorinated biphenyls (15). Concentrations of PAHs in sludges collected between 1998 and 2012 showed a decreasing trend. Study findings suggest the need for a Chinese national sewage sludge survey to identify and regulate toxic OCs, ideally employing both targeted as well as nontargeted screening approaches.

  • 19. Nordlöf, Ulrika
    et al.
    Helander, Björn
    Zebühr, Yngve
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Asplund, Lillemor
    Polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and non-ortho-PCBs in eggs of white-tailed sea eagles collected along the Swedish coast in the Baltic Sea.2012Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 438Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Concentrations of polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF), and dioxin-like non-ortho-PCBs were measured in white-tailed sea eagle (WTSE) eagle eggs collected along the Swedish coast of the Baltic Sea during the period 1992-2004. The eggs represent two different subpopulations with significantly different nestling brood sizes; the Baltic Proper (BP) with an approximately normal nestling brood size (1.62), and the south Bothnian Sea (sBS) with reduced nestling brood size (1.22) combined with a significantly higher rate of dead eggs. The aim was to investigate if this difference in reproductive outcome was linked to differences in exposure to dioxin-like compounds. Three eggs collected in Greenland in 2000 were included in the study to provide a reference sea eagle population outside of the Baltic Sea region. The concentrations of ∑PCDD, ∑PCDF and ∑non-ortho-PCB in the two subpopulations from the Baltic Sea (BS) region ranged from 0.41-4.1, 1.2-5.3 and 180-970 ng/g lipids, respectively, while in the Greenland population the ranges were 0.11-0.16, 0.22-0.33 and 57-83 ng/g lipid, respectively. 2,3,4,7,8-PCDF was the predominant congener in all areas and accounted for on average 31-49% of the total ∑PCDD/F concentrations. The total toxic equivalents (TEQ) in sBS WTSEs were higher (approximately 39 ng TEQ/g lipid) than reported in eggs for many other birds, and the major contributors to the TEQ in the Baltic Sea were the non-ortho-PCBs. A principal component analysis (PCA) showed a difference in congener pattern between the two Baltic regions that was statistically significant (Hotelling's T(2) test). We found no significant differences in the total TEQ between the two populations (sBS-BP) and thus no evidence was found linking the reproductive impairment in WTSE in sBS to the concentrations of PCDD/Fs or non-ortho-PCBs in the eggs.

  • 20. Norrgran, Jessica
    et al.
    Jones, Bernt
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Athanassiadis, Ioannis
    Bergman, Åke
    Higher PBDE serum concentrations may be associated with feline hyperthyroidism in Swedish cats.2015Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 49, nr 8Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Serum from 82 individual cats was analyzed for decabromobiphenyl (BB-209), polybrominated diphenyl ethers (PBDEs), hydroxylated PBDEs (OH-PBDEs), and 2,4,6-TBP in order to study differences in body burden between healthy and sick cats diagnosed with Feline Hyperthyroidism (FH). Within the study group, 60 of these cats had a euthyroid (n = 23) or hyperthyroid (n = 37) status, all of which were used in the comparison. This study shows that hyperthyroid compared to euthyroid cats have higher serum concentrations for some of the investigated PBDEs (BDE-99, BDE-153, and BDE-183) and CB-153 on a fat weight basis. Further, it is intriguing, and beyond explanation, why the flame retardant BB-209 (discontinued in 2000) is present in all of the cat serum samples in concentrations similar to BDE-209. Median BDE-47/-99 ratios are 0.47 and 0.32 for healthy and euthyroid cats, respectively, which differs significantly from Swedes, where the ratio is 3.5. Another important finding is the occurrence of very low levels or the absence of hydroxylated PBDE metabolites in the cats. In addition, the major OH-PBDE, 6-OH-BDE47, is likely of natural origin, probably ingested via cat food. The statistics indicate an association between elevated PBDE concentrations in the cats and FH.

  • 21.
    Owen, Kylie
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution.
    Saeki, Kentaro
    Department of Chemistry, Kumamoto University, Kumamoto.
    Warren, Joseph
    School of Marine and Atmospheric Sciences, Stony Brook University.
    Bocconcelli, Alessandro
    Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution.
    Wiley, David
    Stellwagen Bank National Marine Sanctuary, NOAA National Ocean Service.
    Ohira, Shin-Ichi
    Department of Chemistry, Kumamoto University.
    Bombosch, Annette
    Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution.
    Toda, Kei
    Department of Chemistry, Kumamoto University.
    Zitterbart, Daniel
    Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution.
    Natural dimethyl sulfide gradients would lead marine predators to higher prey biomass2021Inngår i: Communications Biology, E-ISSN 2399-3642, Vol. 4, artikkel-id 149Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Finding prey is essential to survival, with marine predators hypothesised to track chemicals such as dimethyl sulfide (DMS) while foraging. Many predators are attracted to artificially released DMS, and laboratory experiments have shown that zooplankton grazing on phytoplankton accelerates DMS release. However, whether natural DMS concentrations are useful for predators and correlated to areas of high prey biomass remains a fundamental knowledge gap. Here, we used concurrent hydroacoustic surveys and in situ DMS measurements to present evidence that zooplankton biomass is spatially correlated to natural DMS concentration in air and seawater. Using agent simulations, we also show that following gradients of DMS would lead zooplankton predators to areas of higher prey biomass than swimming randomly. Further understanding of the conditions and scales over which these gradients occur, and how they are used by predators, is essential to predicting the impact of future changes in the ocean on predator foraging success.

  • 22.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    PFAS i utter från Norrbotten2020Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 23.
    Roos, Anna
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Eriksson, Ulla
    ACES Stockholms Universitet.
    Fick, Jerker
    Umeå Universitet.
    Miljögifter i utter från Sverige2023Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 24. Tuoriniemi, Jani
    et al.
    Holbrook, Timothy R
    Cornelis, Geert
    Schmitt, Melanie
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Stärk, Hans-Joachim
    Kooijman, Ellen
    Naturhistoriska riksmuseet, Enheten för geovetenskap.
    Wagner, Stephan
    Correction: Measurement of number concentrations and sizes of Au nano-particles spiked into soil by laser ablation single particle ICPMS2020Annet (Annet vitenskapelig)
    Abstract [en]

    The authors regret the omission of one of the authors, Ellen Kooijman, from the original manuscript. The corrected list of authors and affiliations for this paper is as shown above.

    The authors also regret the omission of the following sentence from the acknowledgements section: This is Vegacenter publication number #031.

    The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

  • 25.
    Yuan, Bo
    et al.
    Department of Environmental Science, Stockholm University, 10691 Stockholm, Sweden.
    McLachlan, Michael S.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Department of Environmental Science, Stockholm University, 10691 Stockholm, Sweden.
    Roos, Anna M.
    Greenland Climate Research Center, Greenland Institute of Natural Resources, 3900 Nuuk, Greenland;Department of Environmental Research and Monitoring, Swedish Museum of Natural History, 104 05 Stockholm, Sweden.
    Simon, Malene
    Greenland Climate Research Center, Greenland Institute of Natural Resources, 3900 Nuuk, Greenland.
    Strid, Anna
    RISE Research Institutes of Sweden, 114 86 Stockholm, Sweden.
    de Wit, Cynthia A.
    Department of Environmental Science, Stockholm University, 10691 Stockholm, Sweden.
    Long-Chain Chlorinated Paraffins Have Reached the Arctic2021Inngår i: Environmental Science and Technology Letters, E-ISSN 2328-8930, Vol. 8, nr 9, s. 753-759Artikkel i tidsskrift (Fagfellevurdert)
  • 26. Zhou, Yihui
    et al.
    Asplund, Lillemor
    Yin, Ge
    Athanassiadis, Ioannis
    Wideqvist, Ulla
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Qiu, Yanling
    Zhu, Zhiliang
    Zhao, Jianfu
    Bergman, Åke
    Extensive organohalogen contamination in wildlife from a site in the Yangtze River Delta.2016Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 554-555Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The environmental and human health concerns for organohalogen contaminants (OHCs) extend beyond the 23 persistent organic pollutants (POPs) regulated by the Stockholm Convention. The current, intense industrial production and use of chemicals in China and their bioaccumulation makes Chinese wildlife highly suitable for the assessment of legacy, novel and emerging environmental pollutants. In the present study, six species of amphibians, fish and birds were sampled from paddy fields in the Yangtze River Delta (YRD) were screened for OHCs. Some extensive contamination was found, both regarding number and concentrations of the analytes, among the species assessed. High concentrations of chlorinated paraffins were found in the snake, Short-tailed mamushi (range of 200-340 μg g(-)(1)lw), Peregrine falcon (8-59 μg g(-1)lw) and Asiatic toad (97 μg g(-)(1)lw). Novel contaminants and patterns were observed; octaCBs to decaCB made up 20% of the total polychlorinated biphenyls (PCBs) content in the samples and new OHCs, substituted with 5-8 chlorines, were found but are not yet structurally confirmed. In addition, Dechlorane 602 (DDC-DBF) and numerous other OHCs (DDTs, hexachlorocyclohexanes (HCHs), polybrominated diphenyl ethers (PBDEs), hexbromocyclododecane (HBCDD), chlordane, heptachlor, endosulfan and Mirex) were found in all species analyzed. These data show extensive chemical contamination of wildlife in the YRD with a suite of OHCs with both known and unknown toxicities, calling for further in-depth studies.

  • 27. Zhou, Yihui
    et al.
    Yin, Ge
    Asplund, Lillemor
    Qiu, Yanling
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Zhu, Zhiliang
    Zhao, Jianfu
    Bergman, Åke
    A novel pollution pattern: Highly chlorinated biphenyls retained in Black-crowned night heron (Nycticorax nycticorax) and Whiskered tern (Chlidonias hybrida) from the Yangtze River Delta.2016Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 150Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Contamination of organochlorine pesticides (OCPs), polychlorinated diphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), hydroxylated polybrominated diphenyl ethers (OH-PBDEs) and their methylated counterparts (MeO-PBDEs) were determined in Black-crowned night heron (Nycticorax nycticorax) and Whiskered tern (Chlidonias hybrida) from two drinking water sources, e.g. Tianmu lake and East Tai lake in Yangtze River Delta, China. A novel PCBs contamination pattern was detected, including 11% and 6.9% highly chlorinated biphenyls (PCBs with eight to ten chlorines) in relation to total PCB concentrations in the Black-crowned night heron and Whiskered tern eggs, respectively. The predominating OCPs detected in the present study were 4,4'-DDE, with concentration range 280-650 ng g(-1) lw in Black-crowned night heron and 240-480 ng g(-1) lw in Whiskered tern, followed by β-HCH and Mirex. 6-MeO-BDE-90 and 6-MeO-BDE-99 are the two predominant congeners of MeO-PBDEs whereas 6-OH-BDE-47 contributes mostly to the OH-PBDEs in both species. Contamination level was considered as median or low level compared global data.

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