Zürich Statement on Future Actions on Per-and Polyfluoroalkyl Substances (PFASs)

Ritscher, A.; Wang, Z.; Scheringer, M.; Boucher, J.M.; Ahrens, L.; Berger, U.; Bintein, S.; Bopp, S.K.; Borg, D.; Buser, A.M.; Cousins, I.T.; DeWitt, J.; Fletcher, T.; Green, C.; Herzke, D.; Higgins, C.; Huang, J.; Hung, H.; Knepper, T.; Lau, C.S.; Leinala, E.; Lindstrom, A.B.; Liu, J.; Miller, M.; Ohno, K.; Perkola, N.; Shi, Y.; Haug, L.S., Trier, X.; Valsecchi, S.; van der Jagt, K.; Vierke, L.
2018 | Environ. Health Perspect. | 126 (8) (084502-1-084502-5)

Evaluating the consumption of chemical products and articles as proxies for diffuse emissions to the environment

Bolinius, D.K.; Sobek, A.; Löf, M.F.; Undeman, E.
2018 | Environ. Sci.-Process Impacts

Light-absorption of dust and elemental carbon in snow in the Indian Himalayas and the Finnish Arctic

Svensson, J.; Strom, J.; Kivekas, N.; Dkhar, NB.; Tyal, S.; Sharman, VP.; Jutila, A.; Backman, J.; Virkkula, A.; Ruppel, M.; Hyverinen, A.; Kontu, A.; Hannula, HR.; Lepparanta, M.; Hooda, RK.; Korhola, A.; Asmi, E.; Lihavainen, H.
2018 | Atmos. Meas. Tech. | 11 (1403-1416)

Temperature response of permafrost soil carbon is attenuated by mineral protection

Gentsch N.; Wild B.; Mikutta R.; Čapek P.; Diáková K.; Schrumpf M.; Turner S.; Minnich C.; Schaarschmidt F.; Shibistova O.; Schnecker J.; Urich T.; Gittel A.; Šantrůčková H.; Bárta J.; Lashchinskiy N.; Fuß R.; Richter A.; Guggenberger G.
2018 | Glob. Change Biol. | 24 (3401-3415)

Sulfluramid use in Brazilian agriculture: A source of per- and polyfluoroalkyl substances (PFASs) to the environment

Rodrigo A Nascimento; Deborah BO Nunoo; Ekhine Bizkarguenaga; Lara Schultes; Itsaso Zabaleta; Jonathan P. Benskin; Saulo Spanó; Juliana Leonel
2018 | Environ. Pollut. | In Press

Interactions between the atmosphere, cryosphere and ecosystems at northern high latitudes

Michael Boy; Erik S. Thomson; Juan-C. Acosta Navarro; Olafur Amalds; Ekaterina Batchvarova; Jaana K. Bäck; Frank Berninger; Merete Bilde; Pavla Dagsson Waldhuserova; Dimistri Castaréde; Maryam Dalirian; Gerrit de Leeuw; Monika Wittman; Ella-Maria Duplissy (nèe Kyrö); J. Duplissy; A. M. L. Ekman; Keyan Fang; Jean-Charlet Gallet; Marianne Glasius; Sven-Erik Gryning; Henrik Grythe; Hans-Christen Hansson; Margareta Hansson; Elisabeth Isaksson; Trond Iverson; Ingibjörg Jónsdottir; Ville Kasurinen; Alf Kirkevåg; Atte Korhola; Radovan Krejci; Jon Egill Kristjansson; Hanna K. Lappalainen; Antti Lauri; Matti Leppäranta; Heikki Livhvainen: Risto Makkonon; Andreas Massling; Outi Meinander; E Douglas Nilsson; Haraldur Ólofsson; Jan B. C. Pettersson; Nonne L. Prisle; Ilona Riipinen; Pontus Roldin; Meri Ruppel; Matt Edward Salter; Maria Sand; Ovind Seland; Heikki Seppä; Henrik Skov; Joanna Soares; Andreas Stohl; Johan Ström; Jonas Svensson; Erik Swietlicki; Ksenia Tabakova; Thorstur Torsteinsson; Aki Virkula; Gesa A. Weyhenmeyer; Yusheng Wu; Paul Zieger; Markku Kulmala
2018 | Atmos. Chem. Phys. Discuss.

The Nordic Centre of Excellence CRAICC (CRyosphere-Atmosphere Interactions in a Changing Arctic Climate), funded by NordForsk in the years 2011–2016, was the largest joint Nordic research and innovation initiative to date, aiming to strengthen research and innovation regarding climate change issues in the Nordic Region. CRAICC gathered more than 100 scientists from all Nordic countries in a virtual Centre with the objectives to identify and quantify the major processes controlling Arctic warming and related feedback mechanisms, to outline strategies to mitigate Arctic warming and to develop Nordic Earth System modelling with a focus on the short-lived climate forcers (SLCF), including natural and anthropogenic aerosols. The outcome of CRAICC is reflected in more than 150 peer-reviewed scientific publications, most of which are in the CRAICC special-issue of the journal Atmospheric Chemistry and Physics. This manuscript presents an overview on the main scientific topics investigated in the Centre and provides the reader a state-of-the-art comprehensive summary of what has been achieved in CRAICC with links to the particular publications for further detail. Facing the vast amount of outcomes we are not claiming to cover all results from CRAICC in this manuscript but concentrate here on the main results which are related to the feedback loops in the climate change-cryosphere interaction scheme affecting the Arctic amplification.

Uncertainty quantification of extratropical forest biomass in CMIP5 models over the Northern Hemisphere

Yang, C.-E.; Mao, J.; Hoffman, F.M.; Ricciuto, D.M.; Fu, J.S.; Jones, C.D.; Thurner, M.
2018 | Sci Rep | 8 (10962)

Simplified representations of processes influencing forest biomass in Earth system models (ESMs) contribute to large uncertainty in projections. We evaluate forest biomass from eight ESMs outputs archived in the Coupled Model Intercomparison Project Phase 5 (CMIP5) using the biomass data synthesized from radar remote sensing and ground-based observations across northern extratropical latitudes. ESMs exhibit large biases in the forest distribution, forest fraction, and mass of carbon pools that contribute to uncertainty in forest total biomass (biases range from −20 Pg C to 135 Pg C). Forest total biomass is primarily positively correlated with precipitation variations, with surface temperature becoming equally important at higher latitudes, in both simulations and observations. Relatively small differences in forest biomass between the pre-industrial period and the contemporary period indicate uncertainties in forest biomass were introduced in the pre-industrial model equilibration (spin-up), suggesting parametric or structural model differences are a larger source of uncertainty than differences in transient responses. Our findings emphasize the importance of improved (1) models of carbon allocation to biomass compartments, (2) distribution of vegetation types in models, and (3) reproduction of pre-industrial vegetation conditions, in order to reduce the uncertainty in forest biomass simulated by ESMs.

Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes: a comprehensive review combined with ArcRisk project results

Carlsson, P.; Breivik, K.; Brorström-Lundén, E.; Cousins, I.T.; Christensen, J.; Grimalt, J.O.; Halsall, C.; Kallenborn, R.; Abass, K.; Lammel, G.; Munthe, J.; MacLeod, M.; Øyvind, J-O.; Pawlak, J.; Rautio, A.; Reiersen, L-O., Schlabach, M.; Stemmler, I.; Wilson, S.; Wöhrnschimmel, H.
2018 | Environ Sci Pollut Res | 25 (23) (22499-22528)

Perfluoroalkyl acids and their precursors in floor dust of children’s bedrooms – Implications for indoor exposure

Winkens, K.; Giovanoulis, G.; Koponen, J.; Vestergren, R.; Berger, U.; Karvonen, A.M.; Pekkanen, J.; Kiviranta, H.; Cousins, I.T.
2018 | Environ Int | 119 (493-502)

Inter-individual, inter-city, and temporal trends of per- and polyfluoroalkyl substances in human milk from Swedish mothers between 1972 and 2016

Elisabeth Nyberg; Raed Awad; Anders Bignert; Caroline Ek; Gerd Sällsten; Jonathan P. Benskin
2018 | Environ. Sci.: Processes Impacts | In Press

A two-dimensional non-comprehensive reversed/normal phase high-performance liquid chromatography/tandem mass spectrometry system for determination of limonene and linalool hydroperoxides

Ahmed Ramzi; Hamid Ahmadi; Ioannis Sadiktsis; Ulrika Nilsson
2018 | J. Chromatogr. A | 1566 (102-110)

A two-dimensional non-comprehensive high-performance liquid chromatographic (HPLC) system coupled to electrospray ionization tandem mass spectrometry was developed for the determination of skin allergenic hydroperoxides of limonene and linalool. These compounds are some major components behind skin sensitization and contact (skin) allergy to fragrances.

Fragrance hydroperoxides usually occur in complex compositions, often as constituents of the natural essential oils added to a large number of commercial products. Their similarities to interfering compounds, many with identical elemental composition, make the determination difficult even when using selective detection methods like mass spectrometry. In this work, a first-dimension chromatographic heart-cut isolation of the hydroperoxides on a reversed-phase HPLC system was combined with a second-dimension normal-phase HPLC system for separation of the hydroperoxides. The intersystem transfer was made by trapping the heart-cut fraction on a short graphitized carbon column, exchanging the mobile phase and back-flushing the hydroperoxides into the second dimension.

Each analysis was performed within 60 min without any pretreatment, except dilution, prior to injection. The obtained instrumental limits of detection (LODs) at a signal-to-noise ratio of 3 were lower than 1.2 ng injected on column and method LODs were below 0.3 ppm. An after-shave product was shown to contain the highest concentrations of the measured hydroperoxides, with 445 ± 23 ppm of total linalool hydroperoxides. This level is likely able to elicit skin reactions in already sensitized individuals.

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