Publications

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.

Application of Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) (Part II). NILU F

Wisthaler, A.

Bye-bye, two degree target? Recent development in observed CO2 and CH4: Do we see signs of reductions? NILU F

Myhre, C.L.

Introducing FP7 CLEANSEA: Towards a clean, litter-free European marine environment through scientific evidence, innovative tools and good governance. NILU F

Leslie, H.; Vethaak, D.; Galloway, T.; Perez, C.; Brouwer, R.; van Bavel, B.; Altvater, S.; Boon, A.; Veiga, J.; Ferreira, M.; Fernandez, P.; Nilsson, H.; Kalfagianni, A.; van der Grijp, N.; Cristea, M.; Sheremet, O.; Papyrakis, E.; Anton, E.; Tiganov, G.; Nicolaev, S.; Lewis, C.; Tyler, C.; Depledge, M.; Skourtos, M.; Kontogianni, A.; Gerritse, J.; Kleissen, F.; ElSerafy, G.; Robbens, J.; Devriese, L.; De Witte, B.; Bekaert, K.; Grahn, H.; Geladi, P.; Nordstrom, G.; Papathanassiou, E.; Kaberi, E.; Wolthuis, Y.; Veerman, B.; Westerman, W.; Hadzhiyska, D.; Rasheva, K.; Rashev, B.; Christiansen, K.; Christiansen, L.; Stephensen, P.; Herzke, D.; Warner, N.; Mc Innes, T.; de Boer, J.; Rashid, R.

The analysis of DDTs and chlordanes and their metabolites by gas chromatography tandem mass spectrometry: Comparing atmospheric pressure ionisation with electron impact and chemical ionisation. NILU F

Huber, S.; Warner, N.A.; Nøst, T.H.; Fuskevåg, O.M.; Brox, J.

Comparison of anthropogenic and natural emissions of mercury. NILU F

Pacyna, J.M.; Pacyna, E.G.; Banel, A.; Sundseth, K.

CITI-SENSE: Can sensor technologies contribute to raising awareness of environmental health? NILU F

Bartonova, A.

Number concentration and modal Structure of indoor/outdoor fine particles in four European Cities. NILU F

Lazaridis, M.; Eleftheriadis, K.; Ždímal, V.,Schwarz, J.; Wagner, Z.; Ondracek, J.; Drossinos, Y.; Glytsos, T.; Vratolis, S.; Tørseth, K.; Smolík, J.

NanoShip: Are there any new particle formation events over the North Sea? NILU F

Kelbus, N.; Massling, A.; Lange, R.; Fiebig, M.; Henzing, B.; Glasius, M.; Bilde, M.; Nguyen, Q.T.; Moerman, M.; de Leeuw, G.; Dal Maso, M.; Niku Kivekäs, Kristensson, A.