Multidisciplinary digital solutions for predicting the environmental and cumulative behaviors of contaminants in the Danube River basin ecosystems

Water quality is a key issue for the sustainable development of the world. At present, in most regions of the globe, there is a continuous deterioration of water quality. In order to stop this process, it is necessary to initiate complex studies and actions by specialists in various fields. According to the Water Framework Directive 2000/60 / EC, approved by the European Commission, it is necessary to ensure the "very good" condition for all water bodies. In this paper, we will briefly present: methods, techniques, and algorithms for a sustainable database on water quality parameters, mathematical models and numerical methods of pollutant transport and dispersion.