Report

Status report. 1 July 2010 - 1 October 2010. Environmental surveillance of emissions to air from Snøhvit-Hammerfest LNG. NILU OR

Hak, C.; Gjerstad, K.I.

Atmospheric Degradation of Amines (ADA). Summary report: Photo-oxidation of methylamine, dimethylamine and trimethylamine. CLIMIT project no. 201604. NILU OR

Nielsen, C.J.; D'Anna, B.; Karl, M.; Aursnes, M.; Boreave, A.; Bossi, R.; Bunkan, A.J.C.; Glasius, M.; Hallquist, M.; Hansen, A.M.K.; Kristensen, K.; Mikoviny, T.; Maguta, M.M.; Müller, M.; Nguyen, Q.; Westerlund, J.; Salo, K.; Skov, H.; Stenstrøm, Y.; Wisthaler, A.

The atmospheric gas phase photo-oxidation of methylamine (CH3NH2), dimethylamine ((CH3)2NH) and trimethylamine ((CH3)3N) has been studied under pseudo natural conditions at the European Photochemical Reactor, EUPHORE, in Valencia, Spain. Major products in the photo-oxidation were imines (methanimine and N-methyl-methanimine) and amides (formamide, N-methyl formamide and N,N-dimethyl formamide). Total aerosol yields obtained in EUPHORE experiments were between 8 and 14%. Mimicking conditions at Mongstad results in a steady-state nitrosamine concentration of less than 0.6 % of photo-oxidized dimethylamine and less than 1.1 % of photo-oxidized trimethylamine. For rural regions it is predicted that the formation yield of the corresponding nitramine in the atmospheric oxidation of CH3NH2, (CH3)2NH and (CH3)3N is less than 0.4 %, 2.5 % and 5 %, respectively. The major uncertainties in the current understanding of the fate of amines emitted to the atmosphere are related to night-time chemistry, to the chemistry of imines, and to chemistry in the aqueous aerosol.

Dispersion calculations of NO2 emisson and stack height calculations from a gas and biofueled incinerator at Nydalen, Oslo. NILU OR

Haugsbakk, I.; Tønnesen, D.

Akrylamid i næringsmidler 2009.

Dye, C.; Bjerke, A.

Results from the Swedish national screening programme 2008. Subreport 4: Screening of unintentionally produced organic contaminants. IVL Report B1944

Brorström-Lundén, E.; Remberger, M.; Kaj, L.; Hansson, K.; Palm-Cousins, A.; Andersson, H.; Haglund, P.; Ghebremeskel, M.; Schlabach, M.