Which river rises in south Poland and empties into the Baltic Sea at Gdansk?
Baltic Sea the Baltic. They include the major rivers of north Europe, such as the Oder, the Vistula, the Neman, the Daugava and the Neva. Additional fresh water comes from the difference of precipitation less evaporation, which is positive. An important source of salty water are infrequent inflows of North Sea water into the Baltic. Such inflows, important to the Baltic ecosystem because of the oxygen they transport into the Baltic deeps, used to happen regularly until the 1980s. In recent decades they have become less frequent. The latest four occurred in 1983, 1993, 2003 and 2014 suggesting a new inter-inflow period
Swedish Baltic Sea Water Award aiming to safeguard the water environment in the part of the Baltic Sea nearest to the St. Petersburg area, which emits very large amounts of pollutants into the Baltic Sea. 2000 The City of Gdansk, Poland The City of Gdansk was honored for being the driving force behind the establishment of the Wschod wastewater treatment works, which receives and cleans wastewater from Gdansk and four other Polish cities and populated areas. The Wschod works has had a very clear, positive effect on the water quality in the Bay of Gdansk, a part of the Baltic Sea. 1999 PURAC of Poland