TOXIC will focus on the reduction of the human health risk due to the occurrence of potentially toxic cyanobacteria and cyanotoxins in drinking water sources. The proposed project contains multidisciplinary aspects ranging from raw water monitoring and cyanotoxin identification and analysis to the behaviour of cyanobacteria and their toxins during water treatment processes, including cost evaluation, application and exploitation of the results by potential end-users. With respect to the WHO Guideline Value of 1.0 ?g/L for microcystin-LR in drinking water, TOXIC will provide tools for early-warning in the case of massive algal blooms as well as cost-effective and problem-driven treatment approaches. An Internet-based cyanobacteria platform, "Best practise" guidances for raw water monitoring, analysis and treatment as well as a commercially available software package fot treatment simulation will expected as highlighted project results.