Report

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

Årsrapport 2024. Nasjonalt referanselaboratorium for luftkvalitetsmålinger

Marsteen, Leif; Johnsrud, Mona; Hak, Claudia; Dauge, Franck Rene; Tørnkvist, Kjersti Karlsen; Vo, Dam Thanh; Amundsen, Filip

Denne rapporten oppsummerer oppgavene til Nasjonalt referanselaboratorium for luftkvalitetsmålinger (NRL), delkontrakt 1b, for året 2024.

NILU

Monitoring of long-range transported air pollutants in Norway. Annual Report 2024

Aas, Wenche; Eckhardt, Sabine; Evangeliou, Nikolaos; Duflot, Valentin; Hjellbrekke, Anne-Gunn; Platt, Stephen Matthew; Solberg, Sverre; Yttri, Karl Espen

This report presents results from the monitoring of atmospheric composition and deposition of air pollution in 2024, 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.

NILU