Protecting Baltic Sea from untreated wastewater spillages during flood events in urban areas


Start day


End day




Climate change brings along intense rainfalls and storms in the Baltic Sea region. Urban drainage systems are not capable to handle this, and therefore floods rise the risk of flushing untreated wastewater from urban drainage systems into the nature. The first objective of NOAH is to decrease discharges of nutrients and hazardous substances from urban stormwater runoff to the Baltic Sea by enhancing capacity of public and private actors dealing with land use and spatial planning.


NOAHs approach is to create a concept for holistic planning and implement smart drainage systems in real urban environments. Holistic planning combines stormwater management with spatial planning. This is followed by development of smart drainage systems to make the existing facilities resilient to the impacts of climate change. The concept will be easily scalable to other urban areas. Implementation of the concept could cut up to half of the inflow of pollutants into the Baltic Sea.