Science discovers a new method for proof of fecalia in the Danube

Science discovers a new method for proof of fecalia in the Danube

The Danube, once known as one of the cleanest rivers in Europe, is again the focus of alarming faeces pollution. Scientists from the Karl-Landsteiner University for Health Sciences (KL Krems) and the ICC Water & Health carried out a comprehensive analysis of water quality between Wachau and Vienna between March 2019 and March 2020. Despite the suspicions of shipping companies that illegally lead faeces into the Danube, in this study, such as "https://noe.orf.at/stories/3283261/"> noe.orf.at , no improper entries were proven. The research method, which uses a mix of prediction, evidence and statistical calculation, now allows precise statements about the microbial burden of human faeces.

new knowledge of the source of the faeces

Surprising findings also came from a study that examined the microbiological pollution of the Danube between Ulm and the mouth of the Black Sea. 250 samples were analyzed, showing that human faeces are the main source of pollution. Over 80 percent of the markers referred to human origins, while animal faeces could only be detected in a maximum of 9 percent of the samples. These results, which were published in Tages-Anzeiger , underline the importance of better wastewater treatment systems along the Danube, especially in view of the fact that millions of people are dependent on clean water.

The developed analysis techniques are likely to be pioneering, because they enable precise identification of the causes of contamination, which is of great importance for future water examinations. Both the analyzes of the KL Krems and the microbiological studies bring light into the problem of water quality on one of the most important trade routes in Europe. Both research projects impressively show the urgency and necessity of further studies and improvements in the area of ​​wastewater disposal along the Danube. The river remains a key factor for environmental protection and the health of the millions of people who live in its catchment area.