* DFG-Commission for the Investigation of Health Hazards of Chemical Compounds in the work area
*GDCh-Divisions of “Analytical Chemistry” resp. “Environmental Chemistry and Ecotoxicology”
* VDI/DIN: Working Group “Measurements of Dioxins”
* Advisory Board “Research Center Jülich (KFA)”, Jülich/Germany
* International Advisory Board “Institute of Preventive and Clinical Medicine” in Bratislava/Slovak. Rep.
*Advisory Board of the Bavarian Res. Institute for Waste Research in Augsburg/Germany
* Advisory Board of the “EU-Centre of Excellence for Environmental Analysis and Monitoring” at the Techn. University of Gdansk/Poland
*Advisory Board of the “EU-Centre of Excellence for Environemental Chemistry and Ecotoxicology” at the University of Brno/Czech. Rep.
* Advisory Board of the “Dalian Research and Developing Center for Traditional Chinese Medicine (TCM) at Dalian/PR China
* Advisory Board of the British Environment Ageny at London / UK
* Expert Panel for the Evaluation of EU-Joint Research Centres at Brussels/Belgium
* Board of Perkin-Elmer Corp. at Überlingen/Germany and Norwalk/USA