The DeltaBioTox project includes partners that will bring together leading infectionists/epidemiologists (CO), environmental health experts (P1) and ecologists-ornithologists (P2). Their common aim is to define the health status of the environment from microbial and heavy metal poisoning view, with regard to the environmental impact and animal welfare and achieve a model-based integration of this presumably highly heterogeneous landscape into the parameters of a common European ecosystem. The aim of the project is to provide a comprehensive evaluation of two risks that may endanger the local biodiversity of the Danube Delta and the social and economical future of its residents.