Strategies for grouping per- and polyfluoroalkyl substances

Cousins, I.T.; DeWitt, J.C.; Glüge, J.; Goldenman, G.; Herzke, D.; Lohmann, R.; Miller, M.; Ng, C.A.; Scheringer, M.; Vierke, L.; Wang, Z.
2020 | Society of Environmental Toxicology and Chemistry (SETAC)

SETAC Europe 30th Annual Meeting: SciCon | May 7, 2020 | Online

An (Eco)Toxicity Life Cycle Impact Assessment Framework for Per- And Polyfluoroalkyl Substances

Holmquist, H.; Fantke, P.; Cousins, I.T.; Owsianiak, M.; Liagkouridis, L.; Peters, G.M.
2020 | Environ. Sci. Technol. | 54 (10) (6224-6234)

The P-Sufficient Approach: why high persistence is a source of very high concern

Scheringer, M.; Cousins, I.T.; Ng, C.A. Wang, Z.
2020 | Society of Environmental Toxicology and Chemistry (SETAC)

SETAC Europe 30th Annual Meeting: SciCon | May 5, 2020 | Online

The influence of perfluoroalkyl acid (PFAA) concentrations on the enrichment of PFAAs in sea spray aerosols (SSA) in a laboratory study

2020 | Society of Environmental Toxicology and Chemistry (SETAC)

SETAC Europe 30th Annual Meeting: SciCon | May 3, 2020 | Online

Observations on relations between marine aerosol fluxes and surface-generated noise in the southern Baltic Sea

Piotr Markuszewski, Zygmunt Klusek, Ernst D. Nilsson, Tomasz Petelski
2020 | Elsevier Science Publishers | 62 (413-427)
accoustic bubble spactra , baltic sea , breaking waves , bubble noise , ocean bubbles , sea-spray

This study presents the preliminary results of combining underwater acoustic am- bient noise measurements with those of in-situ sea spray fluxes (SSF). Hydroacoustic measure- ments (in the frequency range 80 Hz —12.5 kHz) were made using an underwater noise recording system developed at the Institute of Oceanology of the Polish Academy of Sciences which was then deployed in the southern Baltic Sea. The simultaneous measurements of coarse sea spray fluxes (with particle diameters ranging from 0.5 to 47 μm) were made on board the r/v Ocea- nia using the gradient method. Observations were conducted for the duration of the passage of an atmospheric front that lasted 2.5 days (60 hours of measurements). There were signif- icant differences in the sound pressure level (SPL) and aerosol fluxes observed between the first part of measurements (developing wave state) and the second part (developed waves). Wave parameters, such as peak period , significant wave height, wave age, and mean wave slope acquired from the WAM (WAve Model), were used to investigate the impact of wave field properties on noise and aerosol flux measurements. We observed different behaviours in the power spectrum density (PSD) levels of noise for these parameters depending on the wave state

Monitoring biofouling as a management tool for reducing toxic antifouling practices in the Baltic Sea

Wrange, AL; Barboza, FR; Ferreira, J; Eriksson-Wiklund, AK; Ytreberg, E; Jonsson, PR; Watermann, B; Dahlstrom, M
2020 | Elsevier Science Publishers | 264

Seasonal source variability of carbonaceous aerosols at the Rwanda Climate Observatory

Andersson A; Kirillova EN; Decesari S; DeWitt L; Gasore J; Potter KE; Prinn RG; Rupakheti M; de Dieu Ndikubwimana J; Nkusi J; Safari B
2020 | Atmos. Chem. Phys. | 20 (4561-4573)

Computational material flow analysis for thousands of chemicals of emerging concern in European waters

van Gils, J.; Posthuma, L.; Cousins, I.T.; Brack, W.; Altenburger R.; , Baveco, H.; Focks, A.; Greskowiak, J.; Kühne, R.; Kutsarova, S.; Lindim, C.; Markus, A.; van de Meent, D.; Munthe, J.; Schueder, J.; Schüürmann, G.; Slobodnikm, J.; de Zwartj, D.; van Wezel A.
2020 | J. Hazard. Mater. | 397 (122655)

Spatio-temporal variation of metals and organic contaminants in bank voles (Myodes glareolus)

Ecke, F.; Benskin, J.P.; Berglund, Å.M.M.; de Wit, C.A.; Engström, E.; Faxneld, S.; Plassmann, M.M.; Rodushkin, I.; Sörlin, D.; Hörnfeldt, B.
2020 | Sci. Total Environ. | 713 (136353-136353)

Environment occurrence of perfluoroalkyl acids and associated human health risks near a major fluorochemical manufacturing park in southwest of China

Fang, S.; Sha, B.; Yin, H.; Biana, Y.; Yuan, Bo.; Cousins, I.T.
2020 | J. Hazard. Mater. | 396 (122617)

Bacterial diversity controls transformation of wastewater-derived organic contaminants in river-simulating flumes

Posselt, M.; Mechelke, J.; Rutere, C.; Coll, C.; Jaeger, A.; Raza, M.; Meinikmann, K.; Krause, S.; Sobek, A.; Lewandowski, J.; Horn, M.A.; Hollender, J.; Benskin, J.P.
2020 | Environ. Sci. Technol.

Brine rejection and hydrate formation upon freezing of NaCl aqueous solutions

Ifigeneia Tsironi; Daniel Schlesinger; Alexander Späh; Lars Eriksson; Mo Segad; Fivos Perakis
2020 | Phys Chem Chem Phys | 22 ( 7625-7632)

Studying the freezing of saltwater on a molecular level is of fundamental importance for improving freeze desalination techniques. In this study, we investigate the freezing process of NaCl solutions using a combination of X-ray diffraction and molecular dynamics simulations (MD) for different salt-water concentrations, ranging from seawater conditions to saturation. A linear superposition model reproduces well the brine rejection due to hexagonal ice Ih formation and allows us to quantify the fraction of ice and brine. Furthermore, upon cooling at T = 233 K, we observe the formation of NaCl·2H2O hydrates (hydrohalites), which coexist with ice Ih. MD simulations are utilized to model the formation of NaCl crystal hydrates. From the simulations, we estimate that the salinity of the newly produced ice is 0.5% mass percent (m/m) due to ion inclusions, which is within the salinity limits of fresh water. In addition, we show the effect of ions on the local ice structure using the tetrahedrality parameter and follow the crystallite formation using the ion coordination parameter and cluster analysis.

Contact information

Visiting addresses:

Geovetenskapens Hus,
Svante Arrhenius väg 8, Stockholm

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

Mailing address:
Department of Environmental Science
Stockholm University
106 91 Stockholm

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Stella Papadopoulou
Science Communicator
Phone +46 (0)8 674 70 11