Report

Data report 2009. Acidifying and eutrophying compounds and particulate matter. EMEP/CCC

Hjellbrekke, A.-G.; Fjæraa, A.M.

The twenty-seventh and twenty-eighth intercomparison of analytical methods within EMEP. EMEP/CCC

Uggerud, H.T.; Hjellbrekke, A.-G.

Transboundary particulate matter in Europe: Status report 2011. EMEP report, 4/2011

Yttri, K.E.; Aas, W.; Tørseth, K.; Fiebig, M.; Fjæraa, A.M.; Tsyro, S.; Simpson, D.; Bergström, R.; Mareckova, K.; Wankmüller, R.; Klimont, Z.; Borken-Kleefeld, J.; Cavalli, F.; Putaud, J.-P.; Schultz, M.; Querol, X.; Alastuey, A.; Amato, F.; Cusack, M.; Reche, C.; Karanasiou, A.; Viana, M.; Moreno, T.; Pey, J.; Perez, N.; Laj, P.; Wiedersohler, A.

Update of background concentrations over Norway. NILU OR

Schneider, P.; Tønnesen, D.; Denby, B.

A methodology for creating a new dataset of estimated background concentrations of NO2, O3, PM10, and PM2.5 that are representative of a typical year over Norway, was developed. The dataset has a spatial resolution of 10 km × 10 km and an hourly temporal resolution. The methodology is based on a spatial mapping component for obtaining information on annual mean background concentrations, and a temporal characterization component, which uses long-term time series of station data to describe the typical development of background concentrations throughout a day and a year. When combined, these two components allow estimates of typical background concentrations at any time of the year at any location in Norway. Whereas the previously used VLUFT method of 1993 only provided spatially constant data at the county level, the new method presented here provides spatially continuous data at a comparatively high spatial resolution. Furthermore, while the previous method only gave a range of constant values that were considered valid throughout the entire year, the new technique provides continuous time series for a typical year at hourly resolution at any location in Norway.

Atmospheric deposition of heavy metals in Norway. Nationwide survey 2010. NILU OR

Steinnes, E.; Berg, T.; Uggerud, H.T.; Pfaffhuber, K.A.

The geographical distribution of atmospheric deposition of heavy metals in Norway was mapped in 2010 by analysis of moss samples from 464 sites all over the country. This report provides a presentation of the results and a comparison with data from a series of corresponding moss surveys starting 1977. The survey is part of an international program comprising large parts of Europe. The survey primarily concerns the ten metals of priority in the European program: vanadium, chromium, iron, nickel, copper, zinc, arsenic, cadmium, mercury, and lead. In addition data are reported for another 42 elements in the moss. The discussion of the obtained data mainly refers to contributions from air pollution. In addition influence from natural processes to the elemental composition of the moss and how it may influence the interpretation of the data is discussed.