The City of Helsinki and the John Nurminen Foundation will pilot phosphorus discharge offsetting between cities in the Baltic Sea area. In the pilot, the City of Helsinki and HSY, the authority responsible for wastewater management in the city, will, for the duration of one year, offset Helsinki’s share of phosphorus discharges at the Viikinmäki wastewater treatment plant by reducing a corresponding volume of nutrient discharges in the wastewaters of Vitebsk. The operation will make Helsinki the first city in the Baltic Sea area that is phosphorus neutral in terms of its municipal wastewaters.
