The current research "Atmospheric deposition of potential phytotoxic organic compounds at altitude profiles Achenkirch" was carried out within 4 field campaigns during different year seasons: Oktober 2000, April 2001, August 2001, May 2002. Aerosol, rain and fog water samples as well as data from the meteorological sensing system were collected on two Alpine sites: Christlumkopf (1758 m a.s.l.) and Mühleggerköpfl (920m a.s.l.). Aerosols were analysed for ionic components, carbon sum parameters (TC, BC, EC and OC) and individual organic compounds.