Publikasjoner

Det er noe i luften.

Grossberndt, S.; Castell, N, Dauge, F. R.; Schneider, P.; Bartonova, A.

Det er noe i luften

Grossberndt, Sonja; Castell, Nuria

Designing a quality control program for collection and analysis of siloxane samples from environmental monitoring programs.

Durham, J.A.; Warner, N.A.; Knoerr, S.; Seston, R.; Powell, D.

Design of multi-luminescent silica-based nanoparticles for the detection of liquid organic compounds

Delic, Asmira; Lindgren, Mikael; Psarrou, Maria; Economopoulos, Solon; Mariussen, Espen; Krivokapic, Alexander; Torsæter, Ole; Omran, Mohamed ; Einarsrud, Mari-Ann

Tracer testing in reservoir formations is utilised to determine residual oil saturation as part of optimum hydrocarbon production. Here, we present a novel detection method of liquid organic compounds by monodisperse SiO2 nanoparticles (NPs) containing two luminophores, a EuIII:EDTA complex and a newly synthesised fluorophore based on the organic boron-dipyrromethene (BODIPY)-moiety. The particles exhibited stable EuIII PL emission intensity with a long lifetime in aqueous dispersion. The fluorescence of the BODIPY was also preserved in the aqueous environment. The ratiometric PL detection technique was demonstrated by using toluene and 1-octanol as model compounds of crude oil. The optimal synthesis conditions were found to give NPs with a diameter of ~100 nm, which is suitable for transport through porous oil reservoir structures. The cytotoxicity of the NPs was confirmed to be very low for human lung cell and fish cell lines. These findings demonstrate the potential of the NPs to replace the hazardous chemicals used to estimate the residual oil saturation. Moreover, the ratiometric PL detection technique is anticipated to be of benefit in other fields, such as biotechnology, medical diagnostics, and environmental monitoring, where a reliable and safe detection of a liquid organic phase is needed.

Wiley-VCH

Desert dust aerosol air mass mapping in the western Sahara, using particle properties derived from space-based multi-angle imaging.

Kahn, R.; Petzold, A.; Wendisch, M.; Bierwirth, E.; Dinter, T.; Esselborn, M.; Fiebig, M.; Heese, B.; Knippertz, P.; Müller, D.; Schladitz, A.; Von Hoyningen-Huene, W.

Descent from the polar mesosphere and anomalously high stratopause observed in 8 years of water vapor and temperature satellite observations by the Odin Sub-Millimetre Radiometer. NILU F

Orsolini, Y.J.; Urban, J.; Murtagh, D.; Lossow, S.; Limpasuvan, V.

Deriving phytoplankton biomass in the marginal ice zone from satellite observable parameters

Engelsen, O.; Hop, H.; Hegseth, E.N.; Hansen, E.; Falk-Petersen, S.

Derivation of a model for the calculation of impact loads of air pollutants to paintings in microclimate frames.

Grøntoft, T.

Derfor er det så mye metan i atmosfæren nå

Platt, Stephen Matthew (intervjuobjekt); Aukrust, Øyvind (journalist)

Deposition of major inorganic compounds in Norway 2012-2016. NILU report

Aas, W.; Hjellbrekke, A.-G.; Fagerli, H.; Benedictov, A.

Avsetning av svovel og nitrogenforbindelser i Norge for perioden 2012 til 2016 er beregnet ved bruk av to forskjellige metoder, en observasjonsbasert metode, mens den andre kombinerer atmosfærisk transportmodell med observasjoner. Begge metodene viser en tydelig gradient med høyest avsetning i sør og sørvest. Den kombinerte metoden har bedre romlig informasjon, spesielt for våtavsetning. For tørravsetning er det ganske store usikkerheter i estimerte verdier for begge metodene. Sammenlignet med forrige periode 2007-2011 er det en nedgang i total svovelavsetning i Norge på 9%. For totalt nitrogen er det små endringer. Sammenlignet med 1978-1982 er det henholdsvis 75% og 20% reduksjon i svovel- og nitrogenavsetningen.

Deposition of major inorganic compounds in Norway 2002-2006. NILU OR

Aas, W.; Hjellbrekke, A.-G.; Hole, L.R.; Tørseth, K.

Deposition of ionic species and black carbon to the Arctic snowpack: combining snow pit observations with modeling

Jacobi, Hans-Werner; Obleitner, Friedrich; Da Costa, Sophie; Ginot, Patrick; Eleftheriadis, Konstantinos; Aas, Wenche; Zanatta, Marco