An integrated approach to study the formation and environmental behavior of transformation products from organic micropollutants

Li, Z.; Sobek, A.; Radke, M.
2016 | Society of Environmental Toxicology and Chemistry (SETAC)

7th SETAC World Congress / SETAC North America 37th Annual Meeting | November 6, 2016 | Orlando, FL, USA

Widespread dispersal and aging of organic carbon in shallow marginal seas

Bao R. McIntyre C., Zhao M., Zhu C., Kao S.-J., Eglinton T.
2016 | Geology

Provningsjämförelse / Proficiency Test 2016-4, Jonbalans / Ion Balance

2016 | ACES rapport, Department of Environmental Science and Analytical Chemistry, Stockholm University | Report No: 10

Biofouling of leisure boats as a source of metal pollution.

Bighiu MA; , Eriksson Wiklund AK, Eklund B.
2016 | Springer-Verlag, Germany | 24 (1) (997-1006)

Lessons on Climate Sensitivity From Past Climate Changes

von der Heydt, A. S., Dijkstra, Hendrik, van de Wal, R. S. W., Caballero, R., Crucifix, M., Foster, G. L., Huber, M., Köhler, P., Rohling, E. J., Valdes, P. J., Ashwin, P., Bathiany, S., Berends, Tijn, van Bree, Loes, Ditlevsen, P., Ghil, M., Haywood, A., Katzav, J., Lohmann, G., Lohmann, J., Lucarini, V., Marzocchi, Alice, Pälike, H., Ruvalcaba Baroni, I., Simon, D., Sluijs, A., Stap, L. B., Tantet, A., Viebahn, J. and Ziegler, M.
2016 | Springfielder

Over the last decade, our understanding of climate
sensitivity has improved considerably. The climate
system shows variability on many timescales, is subject to
non-stationary forcing and it is most likely out of equilibrium
with the changes in the radiative forcing. Slow
and fast feedbacks complicate the interpretation of geological
records as feedback strengths vary over time. In the
geological past, the forcing timescales were different than
at present, suggesting that the response may have behaved differently. Do these insights constrain the climate sensitivity
relevant for the present day? In this paper, we review
the progress made in theoretical understanding of climate
sensitivity and on the estimation of climate sensitivity from
proxy records. Particular focus lies on the background state
dependence of feedback processes and on the impact of
tipping points on the climate system. We suggest how to
further use palaeo data to advance our understanding of the
currently ongoing climate change.

Levels, Isomer Profiles, and Estimated Riverine Mass Discharges of Perfluoroalkyl Acids and Fluorinated Alternatives at the Mouths of Chinese Rivers

Wang, T.; Vestergren, R.; Herzke, D.; Yu, J.; Cousins, I.T.
2016 | Environ. Sci. Technol. | 50 (21) (11584-11592)

Eutrophication increases phytoplankton methylmercury concentrations in a coastal sea – a Baltic Sea case study

A.L. Soerensen; A.T. Schartup; E. Gustafsson; B. Gustafsson; E.M. Undeman; E. Bjorn
2016 | Environ. Sci. Technol. | 50 (11787-11796)

Eutrophication is expanding worldwide, but its implication for production and bioaccumulation of neurotoxic monomethylmercury (MeHg) is unknown. We developed a mercury (Hg) biogeochemical model for the Baltic Sea and used it to investigate the impact of eutrophication on phytoplankton MeHg concentrations. For model evaluation we measured total methylated Hg (MeHgT) in the Baltic Sea and found low concentrations (39±16 fM) above the halocline and high concentrations in anoxic waters (1249±369 fM). To close the Baltic Sea MeHgT budget we inferred an average normoxic water column MeHg production rate of 2×10-4 d-1. We used the model to compare Baltic Sea’s present-day (2005-2014) eutrophic state to an oligo/mesotrophic scenario. Eutrophication increases primary production and export of organic matter and associated Hg to the sediment effectively removing Hg from the active biogeochemical cycle; this results in a 27% lower present-day water column Hg reservoir. However, increase in organic matter production and remineralization stimulates microbial Hg methylation resulting in a seasonal increase in both water and phytoplankton MeHg reservoirs above the halocline. Previous studies of systems dominated by external MeHg sources or benthic production found eutrophication to decrease MeHg levels in plankton. This Baltic Sea study shows that in systems with MeHg production in the normoxic water column eutrophication can increase phytoplankton MeHg content.

Saliva as an alternative specimen to plasma for drug bioanalysis. A review

Hatem Elmongy and Mohamed Abdel-Rehim
2016 | Trends Analyt Chem | 83 (70-79)

Effects of bryophyte and lichen cover on permafrost soil temperature at large scale

Porada, P.; Ekici, A.; Beer, C.
2016 | TC | 10 (2291-2315)

Kvicksilver i kalkade och sura sjöar

2016 | Sötvatten 2016 (32-35) | ISBN: 978-91-87967-31-3

Kalkning av sura sjöar minskar halterna av kvicksilver i fisk. I sura, okalkade sjöar är halterna högre men sjunker långsamt när vattnets pH återhämtar sig. När kalkningen upphör kan kvicksilverhalterna i insjöfisk öka igen. Det visar IKEU:s långa tidsserier för kvicksilver i abborre 1998-2015.

Deconvolution of Soft Ionization Mass Spectra of Chlorinated Paraffins to Resolve Congener Groups

Yuan, B.; Alsberg,T.; Bogdal, C.; MacLeod, M.; Berger, U.; Gao, W.; Wang, Y.; de Wit, C.A.
2016 | Anal. Chem. | 88 (8980-8988)

Lack of trophic polymorphism despite substantial genetic differentiation in sympatric brown trout (Salmo trutta) populations

Andersson, Anastasia.; Johansson, F.; Sundbom, M.; Ryman, N.; Laikre, L.
2016 | Ecol Freshw Fish

Contact information

Visiting addresses:

Geovetenskapens Hus,
Svante Arrhenius väg 8, Stockholm

Arrheniuslaboratoriet, Svante Arrhenius väg 16, Stockholm (Unit for Analytical and Toxicological Chemistry)

Mailing address:
Department of Environmental Science and Analytical Chemistry (ACES)
Stockholm University
106 91 Stockholm

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Stella Papadopoulou
Science Communicator
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