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Fant 8713 publikasjoner. Viser side 4 av 349:

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Characterisation of cumulative risk of contaminants to organisms exposed to stormwater in Oslo, Norway

Ruus, Anders; Xie, Li; Wolf, Raoul; Petersen, Karina; Færgestad, E. M.; Heimstad, Eldbjørg Sofie; Harju, Mikael; Tollefsen, Knut-Erik

2022

Characterisation of cumulative risk of pollutants to marine organisms in Sørfjorden, Norway

Petersen, Karina; Xie, Li; Wolf, Raoul; Ruus, Anders; Færgestad, E. M.; Heimstad, Eldbjørg Sofie; Harju, Mikael; Tollefsen, Knut-Erik

2022

Characterisation of cumulative risk of contaminants to organisms exposed to stormwater in Oslo, Norway

Ruus, Anders; Xie, Li; Wolf, Raoul; Petersen, Karina; Færgestad, E. M.; Heimstad, Eldbjørg Sofie; Harju, Mikael; Tollefsen, Knut-Erik

2022

An NO2 sensor based on WO3 thin films for automotive applications in the microwave frequency range

Paleczek, Anna; Grochala, D.; Staszek, K.; Gruszczynski, S.; Maciak, Erwin; Opilski, Zbigniew; Kaluzynski, Piotr; Wojcikowski, Marek; Cao, Tuan-Vu; Rydosz, A.

2022

Presentasjon av NILU for Romerike batteriverk

Guerreiro, Cristina; Bogra, Shelly

2022

Estimation Of Surface NO2 Concentration Over Europe Using Sentinel-5P Observations And Machine Learning Models

Shetty, Shobitha; Schneider, Philipp; Stebel, Kerstin; Hamer, Paul David; Kylling, Arve

2022

Ingestion of crumb rubber and uptake of associated contaminants in lumpfish (cyclopterus lumpus)

Herzke, Dorte; Hägg, Fanny; Halsband-Lenk, Claudia; Nikiforov, Vladimir; Booth, Andy

Car tire rubber represents an important source of microplastics, mainly through abrasion of tire dust on roads, but also in the form of crumb rubber (CR) produced from end-of-life vehicle tires that is used in artificial sport fields, playgrounds and other urban surfaces. CR is known to contain a mixture of different organic chemicals and metals. The leachate of tire particles has previously been shown to be toxic to marine invertebrates and some fish species. Here, lumpfish (Cyclopterus lumpus) were exposed to CR particles (2-4 µm) in seawater for 7 days, followed by a 14-day depuration period. Blood samples were collected from the fish, together with the stomach and gut for visual detection of CR in the fish intestines. A comprehensive non-target screening analysis of organic chemical content in the blood was conducted using HRGC/HRMS (Thermofisher, Orbitrap). In addition to the screening, specific focus was given to quantification of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) and its degradation product 6PPD-quinone, known toxicants. Tissue samples were also analyzed for metals by ICP-MS. The exposed lumpfish were found to readily ingest CR alongside food under laboratory conditions. The quantity of CR in intestine samples increased during the exposure period, reaching a maximum level directly after the exposure period ended (day 8). A measurable decrease of CR particles was observed throughout the depuration period, although some individuals still contained CR at the end of the depuration period (day 21). The organic chemicals 6PPD and 6PPD-quinone, as well as other CR-related chemicals, were detected in the blood both on day 7 and day 21. No increased in concentration over time was observed for any of the 10 metals were detected in blood of exposed lumpfish. The study confirms that lumpfish actively ingest CR, causing the transfer of CR-related chemicals to the blood.

2022

Jo, miljø­farts­grenser reduserer mengden svevestøv

Grythe, Henrik; Sundvor, Ingrid (intervjuobjekter); Lindin, Ina-Kristin (journalist)

2022

Cloud microphysical processes during ISLAS 2020 campaign: remote sensing, radiosonde and model data

Dekhtyareva, Alena; Maturilli, Marion; Ebell, Kerstin; Johannessen, Aina Marie; Seidl, Andrew Walter; Jonassen, Marius Opsanger; Hermansen, Ove; Kähnert, Marvin; Thurnherr, Iris Livia; Sodemann, Harald

2022

Monitoring of long-range transported air pollutants in Norway. Annual Report 2021.

Aas, Wenche; Berglen, Tore Flatlandsmo; Eckhardt, Sabine; Fiebig, Markus; Solberg, Sverre; Yttri, Karl Espen

This report presents results from the monitoring of atmospheric composition and deposition of air pollution in 2021, and focuses on main components in air and precipitation, particulate and gaseous phase of inorganic constituents, particulate carbonaceous matter, ground level ozone and particulate matter. The level of pollution in 2021 was generally low with few high episodes.

NILU

2022

Plastic burdens in northern fulmars from Svalbard: looking back 25 years

Collard, France; Bangjord, Georg; Herzke, Dorte; Gabrielsen, Geir Wing

The northern fulmar Fulmarus glacialis ingests a larger number of (micro)plastics than many other seabirds due to its feeding habits and gut morphology. Since 2002, they are bioindicators of marine plastics in the North Sea region, and data are needed to extend the programme to other parts of their distribution areas, such as the Arctic. In this study, we provide data on ingested plastics by fulmars collected in 1997 in Kongsfjorden, Svalbard. An extraction protocol with KOH was used and for half of the birds, the gizzard and the proventricular contents were analysed separately. Ninety-one percent of the birds had ingested at least one piece of plastic with an average of 10.3 (±11.9 SD) pieces. The gizzards contained significantly more plastics than the proventriculus. Hard fragments and polyethylene were the most common characteristics. Twelve percent of the birds exceeded the EcoQO value of 0.1 g.

Elsevier

2022

Plastic ingestion and associated additives in Faroe Islands chicks of the Northern Fulmar Fulmarus glacialis

Collard, France; Leconte, Simon; Danielsen, Johannis; Halsband, Claudia; Herzke, Dorte; Harju, Mikael; Tulatz, Felix; Gabrielsen, Geir Wing; Tarroux, Arnaud

Northern Fulmars (Fulmarus glacialis) are a pelagic seabird species distributed at northern and polar latitudes. They are often used as an indicator of plastic pollution in the North Sea region, but data are lacking from higher latitudes, especially when it comes to chicks. Here, we investigated amounts of ingested plastic and their characteristics in fulmar chicks from the Faroe Islands. Plastic particles (1 mm) in chicks of two age classes were searched using a digestion method with KOH. In addition, to evaluate if additive tissue burden reflects plastic ingestion, we measured liver tissue concentrations of two pollutant classes associated with plastic materials: polybrominated diphenyl ethers (PBDEs) and several dechloranes, using gas chromatography with high-resolution mass spectrometry. The most common shape was hard fragment (81%) and the most common polymer was polyethylene (73%). Plastic contamination did not differ between either age class, and we found no correlation between neither the amount and mass of plastic particles and the concentration of additives. After comparison with previous studies on adult fulmars, we do not recommend using chicks for biomonitoring adults because chicks seem to ingest more plastics than adults.

2022

Environmental pollutants in the terrestrial and urban environment 2021

Heimstad, Eldbjørg Sofie; Hanssen, Linda; Moe, Børge; Borgen, Anders; Enge, Ellen Katrin; Nordang, Unni Mette; Bæk, Kine

Samples from the urban terrestrial environment in the Oslo area were analysed for metals and a large number of organic environmental pollutants. The selected samples that were analysed were soil, earthworm, fieldfare egg and liver, brown rat liver, roe deer liver, vegetation, insects and red fox liver. Biomagnification-potential was estimated based on detected data for relevant predator-prey pairs.

NILU

2022

Bærekraftig utbygging av havvind - Marine økosystemer og materialer

Skjellum, Solrun Figenschau; Guerreiro, Cristina

2022

Heavy metals and POP measurements, 2020

Aas, Wenche; Bohlin-Nizzetto, Pernilla

NILU

2022

Monitoring of environmental contaminants in air and precipitation. Annual report 2021.

Bohlin-Nizzetto, Pernilla; Aas, Wenche; Halvorsen, Helene Lunder; Nikiforov, Vladimir; Pfaffhuber, Katrine Aspmo

This report presents data from 2021 and time-trends for the Norwegian monitoring programme "Atmospheric contaminants". The results cover 200 organic compounds (regulated and non-regulated), 11 heavy metals, and a selection of organic chemicals of concern.

NILU

2022

Ozone measurements 2020

Hjellbrekke, Anne-Gunn; Solberg, Sverre

NILU

2022

Transboundary particulate matter, photo-oxidants, acidifying and eutrophying components

Fagerli, Hilde; Benedictow, Anna Maria Katarina; Denby, Bruce; Gauss, Michael; Heinesen, Daniel; Jonson, Jan Eiof; Karlsen, Krister Stræte; Klein, Heiko; Mortier, Augustin; Nyiri, Agnes; Segers, Arjo; Simpson, David; Tsyro, Svetlana; Valdebenito Bustamante, Alvaro Moises; Wind, Peter; Aas, Wenche; Hjellbrekke, Anne-Gunn; Solberg, Sverre; Platt, Stephen Matthew; Tørseth, Kjetil; Yttri, Karl Espen; Matthews, Bradley; Schindlbacher, Sabine; Ullrich, Bernhard; Wankmüller, Robert; Klimont, Zbigniew; Scheuschner, Thomas; Fernandez, Ignacio A. Gonzalez; Kuenen, Jeroen

Norwegian Meteorological Institute

2022

Elucidating nanofibre genotoxic mechanisms: An interlaboratory approach

Burgum, Michael J.; El Yamani, Naouale; Mariussen, Espen; Rundén-Pran, Elise; Sosnowska, Anita; Reinosa, Julian J.; Alcolea-Rodriguez, Victor; Fernandez, Jose F.; Portela, Raquel; Puzyn, Tomasz; Banares, Miguel; Clift, Martin J. D.; Dusinska, Maria; Doak, Shareen H.

John Wiley & Sons

2022

Plastic ingestion and associated additives in Faroe Islands chicks of the Northern Fulmar Fulmarus glacialis

Collard, France; Leconte, Simon; Danielsen, Jóhannis; Halsband, Claudia; Herzke, Dorte; Harju, Mikael; Tulatz, Felix; Gabrielsen, Geir W.; Tarroux, Arnaud

2022

Plastics as a carrier of chemical additives to the Arctic: possibilities for strategic monitoring across the circumpolar North

Hamilton, Bonnie M.; Baak, Julia E.; Vorkamp, Katrin; Hammer, Sjúrður; Granberg, Maria; Herzke, Dorte; Provencher, Jennifer F.

Plastic pollution (including microplastics) has been reported in a variety of biotic and abiotic compartments across the circumpolar Arctic. Due to their environmental ubiquity, there is a need to understand not only the fate and transport of physical plastic particles, but also the fate and transport of additive chemicals associated with plastic pollution. Further, there is a fundamental research gap in understanding long-range transport of chemical additives to the Arctic via plastics as well as their behavior under environmentally relevant Arctic conditions. Here, we comment on the state of the science of plastic as carriers of chemical additives to the Arctic, and highlight research priorities going forward. We suggest further research on the transport pathways of chemical additives via plastics from both distant and local sources and laboratory experiments to investigate chemical behavior of plastic additives under Arctic conditions, including leaching, uptake, and bioaccumulation. Ultimately, chemical additives need to be included in strategic monitoring efforts to fully understand the contaminant burden of plastic pollution in Arctic ecosystems.

2022

Comparison of particle number size distribution trends in ground measurements and climate models

Leinonen, Ville; Kokkola, Harri; Yli-Juuti, Taina; Mielonen, Tero; Kühn, Thomas; Nieminen, Tuomo; Heikkinen, Simo; Miinalainen, Tuuli; Bergman, Tommi; Carslaw, Ken; Decesari, Stefano; Fiebig, Markus; Hussein, Tareq; Kivekäs, Niku; Krejci, Radovan; Kulmala, Markku; Leskinen, Ari; Massling, Andreas; Mihalopoulos, Nikos; Mulcahy, Jane P.; Noe, Steffen M.; Van Noije, Twan; O'connor, Fiona M.; O'dowd, Colin; Oliviè, Dirk Jan Leo; Pernov, Jakob B.; Petäjä, Tuukka; Seland, Øyvind; Schulz, Michael; Scott, Catherine E.; Skov, Henrik; Swietlicki, Erik; Tuch, Thomas; Wiedensohler, Alfred; Virtanen, Annele; Mikkonen, Santtu

Despite a large number of studies, out of all drivers of radiative forcing, the effect of aerosols has the largest uncertainty in global climate model radiative forcing estimates. There have been studies of aerosol optical properties in climate models, but the effects of particle number size distribution need a more thorough inspection. We investigated the trends and seasonality of particle number concentrations in nucleation, Aitken, and accumulation modes at 21 measurement sites in Europe and the Arctic. For 13 of those sites, with longer measurement time series, we compared the field observations with the results from five climate models, namely EC-Earth3, ECHAM-M7, ECHAM-SALSA, NorESM1.2, and UKESM1. This is the first extensive comparison of detailed aerosol size distribution trends between in situ observations from Europe and five earth system models (ESMs). We found that the trends of particle number concentrations were mostly consistent and decreasing in both measurements and models. However, for many sites, climate models showed weaker decreasing trends than the measurements. Seasonal variability in measured number concentrations, quantified by the ratio between maximum and minimum monthly number concentration, was typically stronger at northern measurement sites compared to other locations. Models had large differences in their seasonal representation, and they can be roughly divided into two categories: for EC-Earth and NorESM, the seasonal cycle was relatively similar for all sites, and for other models the pattern of seasonality varied between northern and southern sites. In addition, the variability in concentrations across sites varied between models, some having relatively similar concentrations for all sites, whereas others showed clear differences in concentrations between remote and urban sites. To conclude, although all of the model simulations had identical input data to describe anthropogenic mass emissions, trends in differently sized particles vary among the models due to assumptions in emission sizes and differences in how models treat size-dependent aerosol processes. The inter-model variability was largest in the accumulation mode, i.e. sizes which have implications for aerosol–cloud interactions. Our analysis also indicates that between models there is a large variation in efficiency of long-range transportation of aerosols to remote locations. The differences in model results are most likely due to the more complex effect of different processes instead of one specific feature (e.g. the representation of aerosol or emission size distributions). Hence, a more detailed characterization of microphysical processes and deposition processes affecting the long-range transport is needed to understand the model variability.

2022

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