1. Ice-Snow workshop, Brno, CZ: 4-7.11.041 Persistent Organic Pollutants (POP) in Bjørnøya snow, ice and fog Roland Kallenborn Norwegian Institute for Air Research (NILU), NO-2027 Kjeller Guttorm Christensen, Dennis Gregor Akvaplan-niva, NO-9296 Tromsø

2. Ice-Snow workshop, Brno, CZ: 4-7.11.042 Alpine and Arctic regions

3. Ice-Snow workshop, Brno, CZ: 4-7.11.043 Transport and deposition According to MacDonald R.W. Contaminants, global change and cold regions. In. Ørbæk J.B., Kallenborn R. & Tombre I.M. (Editors) Environmental Challenges in Arctic-Alpine Regions, Springer Vlg. In preparation. Exp. release spring 2005.

4. Ice-Snow workshop, Brno, CZ: 4-7.11.044 Bjørnøya (Bear Island): a case study Bjørnøya radio N 01 2 km Contour interval 100 m Ellasjøen Øyangen

5. Ice-Snow workshop, Brno, CZ: 4-7.11.045 Bjørnøya: Sampling site Three dimensional plot of Bjørnøya (Bear island) Lake EllasjøenMeteorological station

6. Ice-Snow workshop, Brno, CZ: 4-7.11.046 PCBs in the Bjørnøya abiotic environment

7. Ice-Snow workshop, Brno, CZ: 4-7.11.047 Contaminant pattern in meltwater and snow Meteorol. StationEllasjøen Percent SUM HCHPercent SUM PCB

8. Ice-Snow workshop, Brno, CZ: 4-7.11.048 POPs in meltwater Snow Meltwater

9. Ice-Snow workshop, Brno, CZ: 4-7.11.049 PCB in meltwater

10. Ice-Snow workshop, Brno, CZ: 4-7.11.0410 Chlorinated pesticides

11. Ice-Snow workshop, Brno, CZ: 4-7.11.0411 Conclusions  Bjørnøya is a ”hot spot” region for POP contamination in the Arctic.  Levels of POPs in the abiotic environment in Bjørnøya are considerable.  The POP patterns in snow,precipitation and fog are characterised by a surprisingly high variability.  Lakewater samples are contaminated but the POP patterns are relatively stable.  Fog and snow/rain precipitation play play a major role in the deposition process for POPs on Bjørnøya

12. Ice-Snow workshop, Brno, CZ: 4-7.11.0412 Aknowledgement The help and support of many colleagues is highly appreciated: Norwegian Coast The Norwegian Coast guard supported us with transport of equipment and research scientists. crew of the meteorological station The crew of the meteorological station at Bjørnøya help with infrastructure and sample collection. Research Council of NorwayState pollution control Authorities The Research Council of Norway and the State pollution control Authorities supported the Project economically. Anita Evenset Anita Evenset (Akvaplan-niva) helped during the field campaign, Dorte Herzke and Urs Berger Dorte Herzke and Urs Berger (NILU) have performed a part Martin Schlabach of the anaytical work. Martin Schlabach (NILU) helped during the analytical work.