• Methane emissions from the Nord Stream subsea pipeline leaks 

  Harris, Stephen; Schwietzke, Stefan; France, James L.; Salinas, Nataly Velandia; Fernandez, Tania Meixus; Randles, Cynthia; Guanter, Luis; Irakulis-Loitxate, Itziar; Calcan, Andreea; Aben, Ilse; Abrahamsson, Katarina; Balcombe, Paul; Berchet, Antoine; Biddle, Louise C.; Bittig, Henry C.; Böttcher, Christian; Bouvard, Timo; Broström, Göran; Bruch, Valentin; Cassiani, Massimo; Chipperfield, Martyn P.; Ciais, Philippe; Damm, Ellen; Dammers, Enrico; van der Gon, Hugo Denier; Dogniaux, Matthieu; O'Dowd, Emily; Dupouy, François; Eckhardt, Sabine; Evangeliou, Nikolaos; Feng, Wuhu; Jia, Mengwei; Jiang, Fei; Kaiser-weiss, Andrea; Kamoun, Ines; Kerridge, Brian J.; Lampert, Astrid; Lana, José; Li, Fei; Maasakkers, Joannes D.; Maclean, Jean-Philippe W.; Mamtimin, Buhalqem; Marshall, Julia; Mauger, Gédéon; Mekkas, Anouar; Mielke, Christian; Mohrmann, Martin; Moore, David P.; Nanni, Ricardo; Pätzold, Falk; Pison, Isabelle; Pisso, Ignacio; Platt, Stephen Matthew; Préa, Raphaël; Queste, Bastien Y.; Ramonet, Michel; Rehder, Gregor; Remedios, John J; Reum, Friedemann; Roiger, Anke; Schmidbauer, Norbert; Siddans, Richard; Sunkisala, Anusha; Thompson, Rona Louise; Varon, Daniel J.; Ventres, Lucy J.; Chris, Wilson; Zhang, Yuzhong (Peer reviewed; Journal article, 2025)

  The amount of methane released to the atmosphere from the Nord Stream subsea pipeline leaks remains uncertain, as reflected in a wide range of estimates1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18. A lack of information ...

• A European aerosol phenomenology – 9: Light absorption properties of carbonaceous aerosol particles across surface Europe 

  Rovira, Jordi; Savadkoohi, Marjan; Močnik, Griša; Chen, Gang I.; Aas, Wenche; Alados-Arboledas, Lucas; Artiñano, Begoña; Aurela, Minna; Backman, John; Banerji, Sujai; Beddows, David; Brem, Benjamin T.; Chazeau, Benjamin; Coen, Martine Collaud; Colombi, Cristina; Conil, Sébastien; Costabile, Francesca; Coz, Esther; De Brito, Joel F.; Eleftheriadis, Kostas; Favez, Olivier; Flentje, Harald; Freney, Evelyn; Gregorič, Asta; Gysel-Beer, Martin; Harrison, Roy M.; Hueglin, Christoph; Hyvärinen, Antti; Ivančič, Matic; Kalogridis, Athina-Cerise; Keernik, Hannes; Konstantinos, Granakis; Laj, Paolo; Liakakou, Eleni; Lin, Chunshui; Listrani, Stefano; Luoma, Krista; Maasikmets, Marek; Manninen, Hanna; Marchand, Nicolas; Dos Santos, Sebastiao Martins; Mbengue, Saliou; Mihalopoulos, Nikos; Nicolae, Doina; Niemi, Jarkko V; Norman, Michael; Ovadnevaite, Jurgita; Petit, Jean Eudes; Platt, Stephen Matthew; Prévôt, André S.H.; Pujadas, Manuel; Putaud, Jean-Philippe; Riffault, Véronique; Rigler, Martin; Rinaldi, Matteo; Schwarz, Jaroslav; Silvergren, Sanna; Teinemaa, Erik; Teinilä, Kimmo; Timonen, Hilkka; Titos, Gloria; Tobler, Anna; Vasilescu, Jeni; Vratolis, Stergios; Yttri, Karl Espen; Yubero, Eduardo; Zíková, Naděžda; Alastuey, Andrés; Petäjä, Tuukka; Querol, Xavier; Yus-Díez, Jesús; Pandolfi, Marco (Peer reviewed; Journal article, 2025)

  Carbonaceous aerosols (CA), composed of black carbon (BC) and organic matter (OM), significantly impact the climate. Light absorption properties of CA, particularly of BC and brown carbon (BrC), are crucial due to their ...

• Hazard assessment of nanomaterials: how to meet the requirements for (next generation) risk assessment 

  Longhin, Eleonora Marta; Rios Mondragon, Ivan; Mariussen, Espen; Zheng, Congying; Busquets, Marti; Gajewicz Skrętna, Agnieszka; Hofshagen, Ole-Bendik; Bastus, Neus Gómez; Puntes, Victor Franco; Cimpan, Mihaela-Roxana; Shaposhnikov, Sergey; Dusinska, Maria; Rundén-Pran, Elise (Peer reviewed; Journal article, 2024)

  Background Hazard and risk assessment of nanomaterials (NMs) face challenges due to, among others, the numerous existing nanoforms, discordant data and conflicting results found in the literature, and specific challenges ...

• Using a citizen science approach to assess nanoplastics pollution in remote high-altitude glaciers 

  Jurkschat, Leonie; Milner, Robin; Holzinger, Rupert; Evangeliou, Nikolaos; Eckhardt, Sabine; Materic, Dusan (Peer reviewed; Journal article, 2025)

  Nanoplastics are suspected to pollute every environment on Earth, including very remote areas reached via atmospheric transport. We approached the challenge of measuring environmental nanoplastics by combining high-sensitivity ...

• CompSafeNano project: NanoInformatics approaches for safe-by-design nanomaterials 

  Zouraris, Dimitrios; Mavrogiorgis, Angelos; Tsoumanis, Andreas; Saarimaki, Laura Aliisa; del Giudice, Giusy; Federico, Antonio; Serra, Angela; Greco, Dario; Rouse, Ian; Subbotina, Julia; Lobaskin, Vladimir; Jagiello, Karolina; Ciura, Krzesimir; Judzinska, Beata; Mikolajczyk, Alicja; Sosnowska, Anita; Puzyn, Tomasz; Gulumian, Mary; Wepener, Victor; Martinez, Diego S. T.; Petry, Romana; El Yamani, Naouale; Rundén-Pran, Elise; Murugadoss, Sivakumar; Shaposhnikov, Sergey; Minadakis, Vasileios; Tsiros, Periklis; Sarimveis, Harry; Longhin, Eleonora Marta; Sengupta, Tanima; Olsen, Ann-Karin Hardie; Skakalova, Viera; Hutar, Peter; Dusinska, Maria; Papadiamantis, Anastasios; Gheorghe, L. Cristiana; Reilly, Katie; Brun, Emilie; Ullah, Sami; Cambier, Sebastien; Serchi, Tommaso; Tamm, Kaido; Lorusso, Candida; Dondero, Francesco; Melagrakis, Evangelos; Fraz, Muhammad Moazam; Melagraki, Georgia; Lynch, Iseult; Afantitis, Antreas (Peer reviewed; Journal article, 2025)

  The CompSafeNano project, a Research and Innovation Staff Exchange (RISE) project funded under the European Union's Horizon 2020 program, aims to advance the safety and innovation potential of nanomaterials (NMs) by ...

• New advanced models (NAMs) for risk assessment of bisphenol A alternatives 

  Honza, Tatiana; El Yamani, Naouale; Dusinska, Maria; Rundén-Pran, Elise; Marcon, Francesca (Peer reviewed; Journal article, 2024)

  The safety of bisphenol A (BPA) due to its adverse effects on the immune system has led to an increasing concern and a significant regulatory shift. The European Food Safety Authority (EFSA) proposed a reduction in the ...

• Recent methane surges reveal heightened emissions from tropical inundated areas 

  Lin, Xin; Peng, Shushi; Ciais, Philippe; Hauglustaine, Didier; Lan, Xin; Liu, Gang; Ramonet, Michel; Xi, Yi; Yin, Yi; Zhang, Zhen; Bösch, Hartmut; Bousquet, Philippe; Chevallier, Frédéric; Dong, Bogang; Gerlein-Safdi, Cynthia; Halder, Santanu; Parker, Robert J.; Poulter, Benjamin; Pu, Tianjiao; Remaud, Marine; Runge, Alexandra; Saunois, Marielle; Thompson, Rona Louise; Yoshida, Yukio; Zheng, Bo (Peer reviewed; Journal article, 2024)

  Record breaking atmospheric methane growth rates were observed in 2020 and 2021 (15.2±0.5 and 17.8±0.5 parts per billion per year), the highest since the early 1980s. Here we use an ensemble of atmospheric inversions ...

• NERVE – en utslippsmodell for veitrafikk. Dokumentasjon av revidert beregningsmodell for utslipp fra veitrafikk i norske kommuner 

  Weydahl, Torleif; Grythe, Henrik; Steinsland, Christian; Madslien, Anne (NILU rapport;40/2024, Research report, 2024)

  NILU og Transportøkonomisk institutt (TØI) har på oppdrag fra Miljødirektoratet videreutviklet modellen NERVE («Norwegian Emissions from Road Vehicle Exhaust») for beregning av klimagassutslipp fra veitrafikken i norske ...

• Investigating snow deposition of cyclic siloxanes in an Arctic environment 

  Nipen, Maja; Hartz, William Frederik; Bäcklund, Are; Schulze, Dorothea; Christensen, Guttorm; Løge, Oda Siebke; Nikiforov, Vladimir; Bohlin-Nizzetto, Pernilla (NILU report;35/2024, Research report, 2024)

  cVMS are high production volume chemicals that are used for a wide range of industrial and domestic applications. Given the high volatility of cVMS, emissions occur mainly to the atmosphere, and cVMS are present in the ...

• Monitoring of greenhouse gases and aerosols at Svalbard and Birkenes in 2023. Annual report 

  Platt, Stephen Matthew; Svendby, Tove Marit; Hermansen, Ove; Lunder, Chris Rene; Fiebig, Markus; Fjæraa, Ann Mari; Duflot, Valentin; Schmidbauer, Norbert; Myhre, Cathrine Lund; Yttri, Karl Espen; Eckhardt, Sabine; Stebel, Kerstin (NILU report;28/2024, Research report, 2024)

  This annual report for 2023 summarizes the activities and results of the greenhouse gas monitoring at the Zeppelin Observatory, situated on Svalbard, during the period 2001-2023, and the greenhouse gas monitoring and aerosol ...

• Trafikk- og luftkvalitetsberegninger i forbindelse med ny tiltaksutredning for bedre luftkvalitet i Oslo og Bærum 2025-2030. Beregningsresultater for Oslo 

  Weydahl, Torleif; Walker, Sam-Erik; Markelj, Miha; Andersen, André (NILU rapport;31/2024, Research report, 2024)

  Stiftelsen NILU har, i samarbeid med Transportanalyse AS, utarbeidet trafikk- og luftkvalitetsberegninger for Oslo og Bærum kommuner. Arbeidet omfatter en kartlegging av luftkvaliteten ved trafikkberegninger og utslipps- ...

• Trenger Norge et målrettet samfunnsoppdrag for sirkulær økonomi? Utrednings- og medvirkningsfase for et mulig samfunnsoppdrag for sirkulær økonomi 

  Möller, Charlotta; Guerreiro, Cristina; Tarrasón, Leonor (NILU rapport;33/2024, Research report, 2024)

  NILU har i 2024 bistått Klima- og miljødepartementet (KLD) med en utrednings- og medvirkningsprosess for å se på muligheten for etablering av et samfunnsoppdrag for sirkulær økonomi. Dette er et oppdrag under KLDs rammeavtale ...

• Spredningsberegninger av luftforurensning fra Sunndal Metallverk 

  Weydahl, Torleif (NILU rapport;16/2024, Research report, 2024)

  Rapporten presenterer spredningsberegninger for utslipp til luft fra Hydro Sunndal sitt smelteverk i Sunndalsøra for nåsituasjonen med utslippsmengder som i gjeldende utslippstillatelse, og en situasjon med ny utvidet ...

• Måling av gasser i Statsarkivets lokaler i Trondheim. Fase 2 - 2024 

  Berglen, Tore Flatlandsmo; Håland, Alexander; Grøntoft, Terje (NILU rapport;32/2024, Research report, 2024)

  Denne rapporten viser resultater fra fase 2 i måleprosjektet NILU har utført ved Statsarkivet i Trondheim. Det er gjort prøvetaking og analyse i en periode på sju dager fra 23. til 30. mai ved to lokaliteter, én innendørs ...

• The dynamics of concentration fluctuations within passive scalar plumes in a turbulent neutral boundary layer 

  Cassiani, Massimo; Pisso, Ignacio; Salizzoni, Pietro; Stohl, Andreas; Stebel, Kerstin (Journal article; Peer reviewed, 2024)

  We investigate the concentration fluctuations of passive scalar plumes emitted from small, localised (point-like) steady sources in a neutrally stratified turbulent boundary layer over a rough wall. The study utilises ...

• Data Fusion for Enhancing Urban Air Quality Modeling using Large-Scale Citizen Science 

  O'Regan, Anna C.; Grythe, Henrik; Hellebust, Stig; Lopez-Aparicio, Susana; O’Dowd, Colin; Hamer, Paul David; Sousa Santos, Gabriela; Nyhan, Marguerite M. (Peer reviewed; Journal article, 2024)

  Rapid urbanization has led to many environmental issues, including poor air quality. With urbanization set to continue, there is an urgent need to mitigate air pollution and minimize its adverse health impacts. This study ...

• Sources and Seasonal Variations of Per- and Polyfluoroalkyl Substances (PFAS) in Surface Snow in the Arctic 

  Hartz, William Frederik; Björnsdotter, Maria; Yeung, Leo W. Y.; Humby, Jack D.; Eckhardt, Sabine; Evangeliou, Nikolaos; Ericson Jogsten, Ingrid; Kärrman, Anna; Kallenborn, Roland (Peer reviewed; Journal article, 2024)

  Per- and polyfluoroalkyl substances (PFAS) are persistent anthropogenic contaminants, some of which are toxic and bioaccumulative. Perfluoroalkyl carboxylic acids (PFCAs) and perfluoroalkyl sulfonic acids (PFSAs) can form ...

• Air quality and transport behaviour: sensors, field, and survey data from Warsaw, Poland 

  Hassani, Amirhossein; Nicińska, Anna; Drabicki, Arkadiusz; Zawojska, Ewa; Sousa Santos, Gabriela; Kula, Grzegorz; Grythe, Henrik; Zawieska, Jakub; Jaczewska, Joanna; Rachubik, Joanna; Archanowicz-Kudelska, Katarzyna; Zagorska, Katarzyna; Grzenda, Maciej; Kubecka, Magdalena; Luckner, Marcin; Jakubczyk, Michał; Wolański, Michał; Castell, Nuria; Gora, Paweł; Skedsmo, Pål Wilter; Rożynek, Satia; Horosiewicz, Szymon (Peer reviewed; Journal article, 2024)

  The present study describes the data sets produced in Warsaw, Poland with the aim of developing tools and methods for the implementation of human-centred and data-driven solutions to the enhancement of sustainable mobility ...

• Daily high-resolution surface PM2.5 estimation over Europe by ML-based downscaling of the CAMS regional forecast 

  Shetty, Shobitha; Hamer, Paul David; Stebel, Kerstin; Kylling, Arve; Hassani, Amirhossein; Berntsen, Terje Koren; Schneider, Philipp (Peer reviewed; Journal article, 2025)

  Fine particulate matter (PM2.5) is a key air quality indicator due to its adverse health impacts. Accurate PM2.5 assessment requires high-resolution (e.g., atleast 1 km) daily data, yet current methods face challenges in ...

• Exploring the connection between COVID19, the energy crisis and PM2.5 emissions from residential heating 

  Lopez-Aparicio, Susana; Grythe, Henrik; Markelj, Miha; Evangeliou, Nikolaos; Walker, Sam-Erik (Peer reviewed; Journal article, 2024)

  Geopolitical events have shown to threaten European energy security in 2022. In Norway, accustomed to low energy prices, the southern part saw 4 times higher electricity prices in 2022 than long term average, whereas in ...

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