Publikasjoner

A Quantitative Model of Endogenous Climate Adaptation: Data Challenges, Validation, and Applications

Boero, Riccardo

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

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 informed by
surface or satellite methane observations to infer emission changes during
these two years relative to 2019. Results show global methane emissions
increased by 20.3±9.9 and 24.8±3.1 teragrams per year in 2020 and 2021,
dominated by heightened emissions from tropical and boreal inundated areas,
aligning with rising groundwater storage and regional warming. Current
process-based wetland models fail to capture the tropical emission surges
revealed by atmospheric inversions, likely due to inaccurate representation of
wetland extents and associated methane emissions. Our findings underscore
the critical role of tropical inundated areas in the recent methane emission
surges and highlight the need to integrate multiple data streams and modeling
tools for better constraining tropical wetland emissions.

Springer Nature

Exploiting the information from low-cost AQ sensors by combination with other data

Schneider, Philipp

Atmospheric Supply of Nitrogen, Cadmium, Mercury and B(a)P to the Baltic Sea in 2022

Gauss, Michael; Travnikov, Oleg; Gačnik, Jan; Aas, Wenche; Klein, Heiko; Nyiri, Agnes

Norwegian Meteorological Institute

Use of a Lagrangian transport model for atmospheric inversions using satellite observations: case study using TROPOMI to estimate CH4 emissions over Europe

Thompson, Rona Louise; Pisso, Ignacio; Schneider, Philipp; Stebel, Kerstin; Krishnankutty, Nalini; Platt, Stephen Matthew

Screening of compounds in tire wear road run off

Hanssen, Linda; Schmidt, Natascha; Nikiforov, Vladimir

Tire related additive chemicals can leach out and enter the environment. Road run-off and recipient waters are particularly prone to contamination by these chemicals, though data from large screening studies is lacking. Here, we present data from water (road run-off & recipients, atmospheric deposition (rain), snow), sediment (marine, snow dumping sites) and biota (blue mussels) samples collected in the Nordic countries. The aim of this study was to provide a first assessment of the presence of tire related chemicals in road run-off and associated samples in the Nordic countries. Tire related additive chemicals were detected in 85 out of 87 samples, with varying concentrations depending on the sample type and location.

Nordic Council of Ministers

Oslo-dyra er fulle av miljøgifter – og det er vår skyld. Men hvordan vet forskerne det?

Heimstad, Eldbjørg Sofie

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

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 Arctic atmosphere, e.g. at the Zeppelin Observatory near Ny Ålesund, Svalbard, suggesting potential for long-range atmospheric transport. A study to investigate whether cVMS have the potential to deposit to surface media, and thereby represent a potential risk to the terrestrial or marine environment in polar and Arctic regions was carried out. Overall, cVMS levels in samples of vegetation, soil, sediment and marine biota were low. D4 was detected in most samples at concentrations above LOD, but below LOQ, while D5 and D6 were generally not detected. The low cVMS concentrations in soil, vegetation, sediments, and fish are in line with most current research on cVMS in remote regions, which together suggest that input of cVMS from atmospheric deposition and snow melt is likely not a major contributing source.

NILU

Congener group profiles of MCCPs in environmental samples from Norwegian monitoring programmes

Nipen, Maja; Borgen, Anders

Considerations for Accurate Sampling, Extraction, and Analysis of Cyclic Volatile Methylsiloxanes (cVMS) in Snow

Nipen, Maja; Bäcklund, Are; Hartz, William Frederik; Schulze, Dorothea; Gerhards, Reinhard; Durham, Jeremy; McNett, Debra Ann; Bohlin-Nizzetto, Pernilla

Risikovurdering av grillet mat.

Kvalem, Helen Engelstad; Alexander, Jan; Bukhvalova, Barbara Alexandra; Dahl, Lisbeth; Knutsen, Helle Katrine; Olsen, Ann-Karin Hardie; Schlabach, Martin; Mariussen, Espen

Universitetsforlaget

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

Fagerli, Hilde; Benedictow, Anna Maria Katarina; Blake, Lewis R.; van Caspel, Willem Elias; Denby, Bruce; Gauss, Michael; Jonson, Jan Eiof; Klein, Heiko; Lange, Gunnar Felix; Mousing, Erik Askov; Nyiri, Agnes; Oliviè, Dirk Jan Leo; Segers, Arjo; Simpson, David; Tsyro, Svetlana; Valdebenito Bustamante, Alvaro Moises; Wind, Peter Ariaan; Aas, Wenche; Fiebig, Markus; Hjellbrekke, Anne-Gunn; Solberg, Sverre; Tørseth, Kjetil; Yttri, Karl Espen; Redeyoff, Oscar; Matthews, Bradley; Schindlbacher, Sabine; Ullrich, Bernhard; Wankmüller, Robert; Scheuschner, Thomas; Kuenen, Jeroen J.P.; Guevara, Marc; Jaffrezo, Jean-Luc; Dominutti, Pamela; Uzu, Gaelle; Conil, Sébastien; Favez, Olivier; Močnik, Griša

Norwegian Meteorological Institute

Air quality around ports

Pozzoli, Luca; Gressent, Alicia; Soares, Joana; Colette, Augustin; Monge, Silvia; Ortiz, Alberto González

Monitoring air quality in ports and nearby cities is crucial to understanding the role of emissions from shipping and other port activities. This report analyzes air quality in 23 European ports, revealing limited observations in and around port areas. Only 5 of the 23 ports had at least one air quality sampling point for NO2 and PM10 inside the port area. Concentrations in nearby cities can be up to double (NO2) and 74% higher (PM10) when the wind comes from the port. EEA air quality maps showed higher annual mean NO2 concentrations in port areas compared to surrounding regions, with some ports exceeding the 2030 limit value of 20 µg/m³. Annual mean PM10 concentrations were also higher in port areas, with nine ports exceeding the new limit value. The limited number of sampling points makes it challenging to assess trends in NO2 and PM10 concentrations. International shipping emissions significantly contribute to NO2 levels in port cities, as shown by pollution episodes in Antwerpen and Barcelona.

ETC/HE