Biologist and toxicologist at the Federal Environmental Agency, Berlin, Germany, since 1990.Since 2005 Head of the Committee’s Office of the German Ad-hoc Working Group on Indoor Air Guide values of the Indoor Air Hygiene Commission and of the Supreme State Health Authorities (IRK/AOLG Ad-hoc working group). Since 2002 dealing with the assessment of human health risks of indoor air contaminants. Between 1990 and 2002 main interest in ecotoxicology and the risk assessment of chemicals and pesticides.1985 - 1989 Head of the Section Reproduction Toxicity in Non-human Primates at the Free University of Berlin. 1980 to 1989 teratogenicity studies and studies on hormone regulation in Callithrix jacchus. Professional experience includes effects of endocrine disrupting chemicals, toxicology and embryopharmacology, ecotoxicology and animal physiology.Specialties: Toxicity of indoor air contaminants,toxicity of biocides,ecotoxicity of pesticides,teratogenicity and reproduction toxicity of chemicals in non-human primates.