Rapport

Bruk av høyoppløselig massespektrometri for en uhildet kartlegging av organisk-kjemiske forurensning i nedbørfeltet til drikkevannskilden Gjersjøen

Froment, Jean Francois; Aamodt, Randi Margrete; Gundersen, Hans; Skaar, Jøran Solnes; Rostkowski, Pawel

Denne rapporten beskriver en studie utført av NILU for Nordre Follo kommune, med støtte fra Folkehelseinstituttet. Målet var å prøve uhildet kartlegging som metode for å undersøke hvilke organisk-kjemiske forbindelser som finnes i nedbørfeltet til drikkevannskilden Gjersjøen. Som del av dette ønsket vi også å identifisere forbindelser som forårsaker feilaktige, store utslag i nitratsensorer. Ved bruk av høyoppløselig massespektrometri og miljøforensiske metoder ble 163 markører identifisert, inkludert aspirin, kreatin og kreatinin, knyttet til kloakkforurensning under kraftig nedbør. Funnene gir innsikt i kjemisk interferens og kan forbedre overvåkingssystemer og vannforvaltning.

NILU

NO2-måling i omgivelsene til Eramet Sauda

Hak, Claudia; Størdal, Guro

På oppdrag fra Eramet Sauda AS har NILU utført målinger av NO2 i omgivelsene til smelteverket i Sauda. Målingene ble utført med NOx-monitor ved Birkelandsvegen nordøst for bedriften. I tillegg ble NO2 målt med passive prøvetakere ved 3 steder i Sauda. Måleperioden varte fra 30. august 2024 til 10. mars 2025. Norske grenseverdier for luftkvalitet (NO2) og luftkvalitetskriterier ble overholdt ved Birkelandsvegen for alle midlingsperioder. Formålet med prosjektet var å vurdere effekten av det nye energigjenvinningsanlegget (bestående av 7 gassmotorer) på NO2 konsentrasjonen. Det ble ikke funnet noen sammenheng mellom vindretning fra sør-sørvest (fra bedriften mot målestasjonen), motordrift og NO2 konsentrasjonene målt ved måleboden.

NILU

VOC measurements 2023

Solberg, Sverre; Hamer, Paul David; Claude, Anja; Reimann, Stefan

This report documents the EMEP VOC monitoring carried out in 2023. The levels of the measured species in 2023 are presented as well as the 2023-status and history of the VOC programme. The geographical pattern of the species in Europe is discussed as well as the long-term trend during the last 20 years.

NILU

Heavy metals and POP measurements 2023

Aas, Wenche; Halvorsen, Helene Lunder; Pfaffhuber, Katrine Aspmo

This report presents an overview of the annual statistics and results from the monitoring programme of heavy metals and persistent organic pollutants (POPs) in EMEP in 2023.

NILU

Assessing the siting of air quality sampling points at industrial sites

Pozzoli, Luca; Soares, Joana; Kent, Andrew; Davison, Jack; Wingard, Ella; Tarrasón, Leonor

Air quality measurements at industrial locations are intended to assess emission sources typically of the largest magnitude, many of which operate over a long time and are subject to specific permitting rules. Industrial sources represent a significant contribution to the air pollution that people and ecosystems are exposed to. Therefore, appropriately sited sampling points are essential to understanding the characteristics of these emissions, which is necessary to design meaningful monitoring network, implement effective abatement strategies, and inform supplementary assessment methods such as dispersion modelling. Existing environmental legislation establishes criteria for the reporting of industrial emissions and for the design of monitoring networks on pollutant concentrations: 1) the Industrial Emissions Directive (IED), 2) the Regulation on European Pollutant Release and Transfer Register (E-PRTR), and 3) the Ambient Air Quality Directives (AAQDs, Directives 2008/50/EC and 2004/107/EC, as well as the Revised Directive (EU) 2024/2881). The AAQDs provide rules and guidance for monitoring stations across different environments, including specific rules for those classified as industrial. In this study we have evaluated the air quality monitoring sampling points associated with industrial sources. The overarching aim is to underpin assessments by the European Commission of whether the criteria for placing industrial sampling points are applied throughout the European Union in a harmonised manner and whether the application of the criteria ensures that the highest exposure of the general population to air pollution from industrial sources is measured in all air quality zones. For this reason, we have carried out an evaluation of the 2019 monitoring network across Europe in the vicinity of industrial sources.

Publications Office of the European Union

Statusrapport 2025. Nasjonalt referanselaboratorium for luftkvalitetsmålinger

Marsteen, Leif; Johnsrud, Mona; Hak, Claudia; Tørnkvist, Kjersti Karlsen; Vo, Dam Thanh; Amundsen, Filip; Mortensen, Tore

Denne rapporten oppsummerer oppgavene til Nasjonalt referanselaboratorium for luftkvalitetsmålinger (NRL), delkontrakt 1b, for første halvår 2025.

NILU

Environmental Contaminants in an Urban Fjord, 2024 – Emphasis on Alna River

Ruus, Anders; Grung, Merete; Bæk, Kine; Rundberget, Thomas; Vogelsang, Christian; Beylich, Bjørnar; Lund, Espen; Eriksen, Tor Erik; Jenssen, Marthe Torunn Solhaug; Ribeiro, Anne Luise; Hanssen, Linda; Enge, Ellen Katrin

This report presents data from the fourth year of a 5-year period of the Urban Fjord
programme. The programme started in 2013 and has since been altered/advanced.
In 2024 the programme covers sampling and analyses of water, water moss,
invertebrates, and trout from Alna River, as well as stormwater from Eastern Oslo
City. A sampling campaign was also conducted for source tracing of chlorhexidine,
dichloromethane and trichloromethane previously found in Alna River. A total of
240 single compounds/isomers were analyzed, and frequent detection was found
of specifc PFAS compounds in aqueous phases, other specifc PFAS compounds in
trout liver, UV-compounds and certain QACs in the particulate fraction of
stormwater, certain benzothiazoles in stormwater (dissolved and/or particulate
fraction) , chlorinated paraffns (MCCP and LCCP) in biota, certain siloxanes in
nearly all matrices, metals in all matrices, and PCBs in biota. Biomagnifcation was
only observed for a couple of the PCB congeners. However, as expected,
biomagnifcation was observed for mercury and PFOS. Biomagnifcation of silver
was observed when trout was represented by liver samples, but not muscle samples.
The source tracing showed the presence of the compounds at several stations

Norsk institutt for vannforskning (NIVA)

Environmental pollutants in the terrestrial and urban environment 2024

Heimstad, Eldbjørg Sofie; Moe, Børge; Davie-Martin, Cleo Lisa; Borgen, Anders; Enge, Ellen Katrin; Hotvedt, Ådne; Løge, Oda Siebke; Harju, Mikael; Bæk, Kine; Hanssen, Linda

Samples from the urban terrestrial environment in the Oslo area were analysed for metals and a large number of organic environmental pollutants. The selected sample types that were analysed were soil, earthworm, fieldfare and sparrowhawk eggs, liver samples of brown rat, red fox and badger and blood serum from dog. Biomagnification potential was estimated based on detected data for relevant predator-prey pairs.

NILU

Quantification of microplastic in fillet and organs of farmed and wild salmonids- a comparison of methods for detection and quantification

Gomiero, Alessio; Haave, Marte; Bjorøy, Ørjan; Herzke, Dorte; Kögel, Tanja; Nikiforov, Vladimir; Øysæd, Kjell Birger

Microplastic (MP) is of growing concern to environmental and human health. This study investigated three analytical approaches to measure MP in tissues of salmonids. The study aimed to 1) determine and demonstrate the sensitivity of current analytical methods for MP in salmon tissues for the three different quantitative methods, 2) compare the utility of the different methods in terms of cost, time and sensitivity 3) quantify MP in a relevant selection of tissues of farmed and wild salmon in order to establish likely indicator organs for future documentation purposes. We here present the results, compare the methods and discuss uncertainties and needs for further method development.

NORCE Norwegian Research Centre

Datarapport: Analyse av gadolinium, Komp-540, ioheksol, jod og acetat i miljøprøver. DNV-prosjekt: Overvåking utenfor Ramslandsvågen 2024

Pfaffhuber, Katrine Aspmo; Skaar, Jøran Solnes; Davanger, Kirsten; Rostkowski, Pawel; Gundersen, Hans; Vadset, Marit; Bjørneby, Stine Marie

NILU

Utslipp til luft fra Vianode Herøya. Underlag for konsekvensutredning. Revidert rapport .

Berglen, Tore Flatlandsmo; Svendby, Tove Marit; Tønnesen, Dag; Solberg, Sverre; Vo, Dam Thanh

NILU

Monitoring of microplastics in the Norwegian environment (MIKRONOR) 2023

Alling, Vanja Karin Gunilla; Lund, Espen; Lusher, Amy Lorraine; Knight, Jemmima; Hjelset, Sverre; Singdahl-Larsen, Cecilie; Francés, Elena Martínez; Rødland, Elisabeth Strandbråten; Pakhomova, Svetlana; Snekkevik, Vilde Kloster; Consolaro, Chiara; Bavel, Bert van; Schmidt, Natascha; Herzke, Dorte

The MIKRONOR monitoring program aims to establish baseline levels of microplastics in the Norwegian environment and to identify potential sources and sinks. This third MIKRONOR report focuses mainly on results from air samples, including data on tyre wear particles (TWP), as well as river and fjord surface water samples, and their correlation to rainfall and river discharge levels. Additionally, it presents data from sand samples taken from an OSPAR beach in the outer Oslofjord. The results for 2023 provide evidence of the omnipresence of microplastics in the environment. However, levels were higher near cities and populated areas, with decreasing levels further from human activities. This trend was observed in both air and surface water samples. Sand samples from the OSPAR beach in the Oslofjord showed levels of microplastics comparable to, or slightly higher than studied eabches at Svalbard. Since no other beach studies have been conducted in the MIKRONOR program, it is difficult to determine typical microplastic levels on a beach in the outer Oslofjord. Determined levels of microplastics in the beach samples were comparable to levels in marine bottom sediment at remote areas along the coast and lower than levels in sediments from the Oslofjord. Main conclusions of this report highlight the need for further research into the processes that control the levels and variations of microplastics and TWPs, such as weather conditions, river discharge, and air mass movement. Sampling of different matrices should, where possible, be conducted using similar strategies and equipment to improve the comparability of results. Additionally, the high spatial and temporal variability between samples must be considered to determine the appropriate number of analyses needed to obtain reliable results.

Norsk institutt for vannforskning (NIVA)