Publikasjoner

Monitoring air quality: the role of OSSEs in determining the future global observing system. NILU F

Lahoz, W.; Attie, J.L.; Abida, R.; El Amraoui, L.; Hache, E.; Ricaud, P.; Peuch, V.H.; Orphal, J.

Achievements of three year aerosol_cci work. NILU F

Holzer-Popp, T.; de Leeuw, G.; Bingen, C.; Fischer, J.; Kinne, S.; North, P.; Poulson, C.; Ramon, D.; Schulz, M.; Stebel, K.; Tanre, D.; Thomas, G.; Veefkind, P.; Vountas, M.; Zieger, P.; Pinnock, S.

Validation of MERIS Products at Sagres, SW Portugal Between 2008-2012. NILU F

Icely, J.; Cristina, S.; Goela, P.; Moore, G.; Danchenko, S.; Newton, A.

Evaluation of soil moisture products over Norway. NILU F

Griesfeller, A.; Lahoz, W.A.; Svendby, T.M.; Haugen, L.M.; Wagner, W.; Dorigo, W.; Kerr, Y.; de Jeu, R.A.M.; Kristiansnen, J.

EMEP intensive measurement periods in close partnership with EU projects. NILU F

Aas , W.; Alastuey, A.; Canonaco, F.; Cavalli, F.; Lucarelli, F.; Nemitz, E.; Prévôt, A.S.H.; Putaud, J.-P.; Simpson, D.; Myhre, C.L.; Querol, X.; Tsyro, S.; Yttri, K.E.

ACTRIS - Aerosols, Clouds and Trace gases Research InfraStructure and access to ACTRIS Data: http://actris.nilu.no/ NILU F

Myhre, C.L.; Pappalardo, G.; Laj, P.

The ESA WACMOS-ET Project: Advancing in the production of evapotranspiration from satellite observations. NILU F

Jimenez, C.; Prigent, C.; Aires, F.; Miralles, D.; Trigo, I.; Muller, J.-P.; Disney, M.; McCabe, M.; Ershadi, A.; Muller, B.; Hirschi, M.; Seneviratne, S.; Schneider, P.; Prata, F.; Jung, M.; Reichstein, M.; Fisher, J.; Mu, Q.; Su, B.; Timmermans, J.; Abouali, M.; Chen, X.; Fernandez, D.

The role of reference methods and quality assurance (QA) programmes in EMEP (European Monitoring and Evaluation Programme) - Long-term observational monitoring networks: Interaction with communities, new technologies and methods for air pollution monitoring. NILU F

Aas, W.

CITI-SENSE - Development of sensor-based citizens' observatory community for improving quality of life in cities NILU F

Liu, H.-Y.; Bartonova, A.

Support to aviation control service: monitoring of volcanic SO2 and ash emissions by a multi-sensor satellite system. NILU F

Brenot, H.; Theys, N.; van Gent, J.; Van Roozendael, M.; Clarisse, L.; Hurtmans, D.; Coheur, P.; Clerbaux, C.; van der A, R.; Prata, F.; Zehner, C.

The Volcanic Ash Strategic Initiative Team (VAST) - operational testing activities and exercises. NILU F

Wotawa, G.; Arnold, D.; Eckhardt, S.; Kristiansen, N.; Maurer, C.; Prata, F.; Stohl, A.; Zehner, C.

Calibration of a passive air sampler for volatile methyl siloxanes. NILU F

Krogseth, I.S.; Zhang, X.; Lei, Y.D.; Wania, F.; Breivik, K.

Prioritization, screening and identification of organosilicon contaminants in the environment. NILU F

Kierkegaard, A.; McLachlan, M.S.; Breivik, K.; Arnot, J.A.; Wania, F.

A mass balance model of chemical fate and bioaccumulation in the environment was used to rank 287 high- and low-production volume organosilicon compounds for their concentration in the environment and in top predators. Key physical chemical properties of each chemical were estimated using quantitative structure-activity relationships (QSARs) and a total emission estimate of each chemical was made using information, which included amounts entering commerce and emission factors. Based on the model predicted concentrations in air, sediment and human tissue, chemicals were selected for screening through environmental sampling and analysis. Known environmental organosilicon contaminants such as the cyclic and linear volatile methyl siloxanes (VMS) were excluded as well as structures subject to rapid hydrolysis, a feature which was not taken into account in the model simulations because of current limitations in predicting hydrolysis half-lives with QSARs. Analytical standards were only commercially available for half of the remaining 30 organosilicon compounds. Ten of these were not stable in solution, which left 5 organosilicon compounds eligible for environmental screening. These were tetrakis(trimethylsilyloxy)silane, phenyl-tris(trimethylsiloxy)silane, trifluoropropyltrimethylcyclotrisiloxane, trifluoropropylmethylcyclotetrasiloxane and tetraphenyltrisiloxane. Four of these chemicals were identified in sewage sludge, in sediment from Stockholm harbor, and in Stockholm ambient air samples. The trifluoropropyl-substituted siloxanes were analysed with UPLC-MS/MS, the others with GC-MS. Trifluoropropyltrimethylcyclotrisiloxane was solely detected as its corresponding linear diol. To date it is unclear whether the diol is present in the environment as such or formed during extraction or cleanup. The concentrations of the chemicals ranged from pg m-3 in air up to ng g-1 d.w. in sewage sludge, which are orders of magnitude below the levels of cyclic VMS (such as D5) in the same matrices.