Pollenflug, BUWALState of the Art: This project intends to evaluate and test a monitoring system for the general surveillance of GMPs in Switzerland based on pollen-sampling (Bees, technical pollen sampler) in order to assess the current situation and its evolution. Comparable studies were conducted in Germany by the Federal Agency for Nature Conservation (Hofmann et al. 2005: www.bfn.de/08/0802.htm) and in Austria by the Federal Ministry for Health and Women (Dolezel et al. 2003: www.bmgf.gv.at/cms/site/bestelliste.htm?channel=CH0295) Definition of the problem: Until now Switzerland is considered to be “GMP-free” to date. Nevertheless, GMP may already exist in the environment, since several sources for entry exist: Pollen entering from neighbouring countries, GMP contaminated seeds and animal feed, transport of GMP seeds through Switzerland, release from contained systems. Project aims including target group: The project intends to develop and test a monitoring system for the appearance and dissemination of GMPs within Switzerland. Methodology: DNA array technology and TaqMan PCR assays with known limits of detection will be developed for a fast and reliable detection of transgenic DNA in pollen mixtures by the KLBS. In addition, the method for collecting pollen samples using honeybees or technical pollen samplers will be evaluated by FiBL Food security, food quality and human healthProject description