Speciation measurements of airborne mercury species in northern Finland; Evidence for long range transport of air masses depleted in mercury
1 Department of environmental inorganic chemistry, Chemical and Biological Engineering, Chalmers University of Technology, Kemivägen 4, 412 96 Göteborg, Sweden
2 Air Quality Laboratories, Finnish Meteorological Institute, P.O. Box 503, FIN-00101 Helsinki, Finland
3 IVL Swedish Environmental Institute, Aschebergsgatan 44, 411 33 Göteborg, Sweden
Mercury speciation measurements were performed at the Arctic measurement site, Pallas Matorova, in northern Finland during the period 12-04-02 to 12-04-26. For the first time Hg speciation measurements with high sensitivity and temporal resolution were performed at this site. The measurement allowed simultaneous determination of TGM, GEM, GOM and particulate bound mercury. Evidence for long range transport of air masses depleted in mercury is provided as well as a study of possible mercury sources determining the temporal variations in airborne mercury species at the site.
Key words: Mercury / TGM / GEM / GOM / PBM / AMDE
© Owned by the authors, published by EDP Sciences, 2013
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