The schools with their own water supply sources, such as wells, had higher nitrate concentrations compared to those connected to public water supply systems. The retrospective ten-year analysis of nitrate concentrations trend in water samples from private water supply systems (wells) in rural schools of the Mačva district using database of th...

By Bojan Damnjanović, Marijana Srećković, Milica Živković, Ana Vasić, Gordana Jovanović, Ljiljana Tanasić

 An aquatic plant, Euryale ferox Salisb, is the only species of the genus Euryale native to eastern Asia and has been found from India to Korea and Japan. E. ferox is ecologically classified as floating leaf emergent macrophyte or as a rooted floating macrophyte - aerohydatophyte. E. ferox is regarded as an extinct Tertiary aquatic plant of Eu...

By Milica Živković, Ranko Perić, Dragan Obradov, Bojan Damnjanović, Šandor Šipoš, Boris Novaković