Comparison of measured residential black carbon levels outdoors and indoors with fixed-site monitoring data and with dispersion modelling

Gruzieva, O.; Georgelis, A.; Andersson, N.; Bellander, T..; Johansson, C.; Merritt, A.-S.
2020 | Environ Sci Pollut Res

High Concentrations of Unidentified Extractable Organofluorine Observed in Blubber from a Greenland Killer Whale (Orcinus orca)

Lara Schultes; Carmen van Noordenburg; Kyra M. Spaan; Merle M. Plassmann; Malene Simon; Anna Roos; Jonathan P. Benskin
2020 | Environ. Sci. Technol. Lett. | 7 (909-915)

It is generally accepted that per- and polyfluoroalkyl substances (PFASs) occur primarily in protein-rich tissues such as blood and liver, but few studies have examined the occurrence of legacy and novel PFASs in lipid-rich tissues such as blubber. Here we report the distribution of 24 PFASs, total fluorine, and extractable organic fluorine (EOF) in eight different tissues of a killer whale (Orcinus orca) from East Greenland. The sum of target PFAS concentrations was highest in liver (352 ng/g of wet weight) and decreased in the following order: blood > kidney ≈ lung ≈ ovary > skin ≈ muscle ≈ blubber. Most of the EOF consisted of known PFASs in all tissues except blubber, which displayed the highest concentration of EOF, almost none of which was attributed to targeted PFASs. Suspect screening using high-resolution mass spectrometry revealed the presence of additional PFASs but is unlikely to explain the high concentrations of EOF in blubber. While the identity of this unknown organofluorine and its pervasiveness in marine mammals require further investigation, this work suggests that exposure of killer whales to organofluorine substances may be underestimated by determination of legacy PFASs exclusively in liver or blood.

Molecular Perspective on Water Vapor Accommodation into Ice and Its Dependence on Temperature

Daniel Schlesinger; Samuel J. Lowe; Tinja Olenius; Xiangrui Kong; Jan B. C. Pettersson; Ilona Riipinen
2020 | JOURNAL OF PHYSICAL CHEMISTRY A | 124 (51) (10879-10889)

Provningsjämförelse / Proficiency Test 2020-5, Avloppsvatten / Wastewater

2020 | ACES rapport, Department of Environmental Science and Analytical Chemistry, Stockholm University | Report No: 44

The effect of weathering on per-and polyfluoroalkyl substances (PFASs) from durable water repellent (DWR) clothing

van der Veen, I; Hanning, A-C; Stare, A; Leonards, PEG; de Boer, J; Weiss, JM
2020 | Chemosphere | 249

Assessing costs and benefits of improved soil quality management in remediation projects: A study of an urban site contaminated with PAH and metals

Volchko, Y; Kleja Berggren, D; Back, P-E; Tiberg, C; Enell, A; Larsson, M; Jones, CM; Taylor, A; Viketoft, M; Åberg, A; Dahlberg, A-K; Weiss, J; Wiberg, K; Rosén, L
2020 | Sci. Total Environ. | 707

Carbamazepine Ozonation By-Products: Toxicity in Zebrafish (Danio rerio) Embryos and Chemical Stability

Pohl, J; Golovko, O; Carlsson, G; Eriksson, J; Glynn, A; Örn, S; Weiss, JM
2020 | Environ. Sci. Technol. | 54 (5) (2913-2921)

Using Cats as Sentinels for Human Indoor Exposure to Organic Contaminants and Potential Effects on the Thyroid Hormone System

Weiss, J and Jones, B
2020 | Springer-Verlag, Germany | Pets as Sentinels, Forecasters and Promoters of Human Health

Carbon and nitrogen cycling in Yedoma permafrost controlled by microbial functional limitations

S. Monteux; F. Keuper; S. Fontaine; K. Gavazov; S. Hallin; J. Juhanson; E.J. Krab; S. Revaillot; E. Verbruggen; J. Walz; J.T. Weedon; E. Dorrepaal
2020 | Nat. Geosci. | 13 (12) (794-798)
biogeochemical nitrogen cycle , carbon dynamics , microbial communities , permafrost

Risk assessments of contaminated sediments from the perspective of weight of evidence strategies – a Swedish case study

Bruce, P.; Sobek, A.; Ohlson, Y.; Bradshaw, C.
2020 | Hum. Ecol. Risk Assess

Several countries currently lack common recommendations specific
to Ecological Risk Assessment (ERA) of contaminated sediments
and stakeholders report inconsistencies between currently used
approaches. The objective of this study was to provide an increased
understanding of how ERAs of contaminated sediments are conducted
in comparison to established guidelines. For this, we use
Sweden as a case study and compare seven ERAs with four internationally
established strategies. Our results indicate that contaminant
concentrations receive a comparatively high weight, despite a
lack of appropriate benchmarks; toxicity measurements are uncommon,
while routine in established strategies; and the integration and
interpretation of results lack transparency. We identify three areas
that may help improve the practice of ERAs: a common approach to
benchmarks, recommendations for how to assess toxic effects, and a
common approach for integrating and interpreting results.

Provningsjämförelse / Proficiency Test 2020-4, Jonbalans och klorofyll / Ion Balance and chlorophyll

2020 | ACES rapport, Department of Environmental Science and Analytical Chemistry, Stockholm University | Report No: 43

The Transition From Stochastic to Deterministic Bacterial Community Assembly During Permafrost Thaw Succession

S.J. Doherty; R.A. Barbato; A.S. Grandy; W.K. Thomas; S. Monteux; E. Dorrepaal; M. Johansson; J.G. Ernakovich
2020 | Front. Microbiol. | 11

Contact information

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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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