The project aims to establish new robust detection and quantification methods for relevant cyanobacteria and their toxins in order to enable better monitoring of emerging algal blooms and potential toxin release.
Climate change is affecting conditions in reservoirs and lakes in such a way that toxic cyanobacteria (blue-green algae) are spreading more widely. Cyanobacteria benefit from higher temperatures and stable conditions compared to other algae due to longer-lasting stratification of lakes and reservoirs. Many of the cyanobacteria found in water bodies, such as the genera Microcystis and Planktothrix, are capable of producing toxins that can cause health problems. This poses a problem for water supply, as the removal of dissolved toxins is challenging depending on the type of treatment. Mass developments of cyanobacteria can lead to high toxin concentrations in the water. Furthermore, algal blooms can lead to odor and taste problems in treated drinking water. Early detection of such cyanobacterial blooms is essential so that water suppliers can respond appropriately. Since some cyanobacterial species, such as Planktothrix rubescens, reproduce in the metalimnion, mass developments may not be detected until late.
The aim of the project is to develop adequate and robust analytical methods for cyanobacteria, their toxins and odor and flavor compounds. Molecular biological methods are being developed for the rapid identification and quantification of cyanobacteria and their toxin formation potential. In addition, analytical methods for toxins and odor substances are being expanded and optimized. This will increase knowledge about cyanobacterial species, which are becoming more prevalent due to climate change, and their potential threat to drinking water through toxin release.
