Filipova, MargaritaMargaritaFilipovaZheleva, IvankaIvankaZhelevaRoussev, P.P.Roussev2017-03-142017-03-142013L : 1843-5831(on-line): 2457-8371http://hdl.handle.net/123456789/400http://www.simiecoind.ro/wp-content/uploads/2015/04/INVESTIGATION-OF-MONITORING-SYSTEMS.pdfInternational Symposium "The Environment and the Industry" SIMI 2013Volume IIThe good coordination between all Danube countries, environmental understanding between them and their joint efforts in the global European policy for the river Danube will help to restore the purity of the river. Danube catchment is extremely large and diverse. It supports a variety of eco-systems (karst caves, alpine steppe lakes, floodplain forests, delta) and various wetlands of European significance.Environmental monitoringEcological balancePollutantsSymposium Proceedings