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Content of harmful and dangeous matter in waters for irrigation in the South Backa area [Serbia, Yugoslavia]
1998
Stefanovic, S. | Zdravkovic, M. (Institut za zemljiste, Beograd (Yugoslavia))
5 water samples were taken from the irrigation channel nearby Kamendin, Sirig, Becej, Backo Gradiste, Backi Petrovac which is part of DTD (Danube-Tisza-Danube) system (Serbia, Yugoslavia). Content of Cd (cadmium), Pb (lead), Hg (mercury), As (arsenic), Cr (chromium), Ni (nickel), F (fluorine), Cu (copper), B (boron) in water samples was analyzed. The origin of these elements in the waters and the effect of potentional pollutant was analyzed. Also, deviation of content of these elements from permissible amounts which were announced in the Book of Regulation was commented.
显示更多 [+] 显示较少 [-]Biodegradability of coffee deposit and its influence on recipients
1997
Vulic, D. (Institut za vodoprivredu "Jaroslav Cerni", Beograd (Yugoslavia)) | Cukic, Z. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Prirodno-matematicki fakultet, Institut za hemiju)
Owing to the habit of most of Yugoslavs to prepare coffee without filtering, the large part of used coffee comes to recipients. In this paper, the influence of coffee deposits reaching recipients in Yugoslavia is analyzed. Results of laboratory examination of the biodegradability and kinetic of biodegradability of coffee deposits are also presented.
显示更多 [+] 显示较少 [-]Deposition of aero-pollutants as a source for pollution of surface storages for water supply
1997
Ristic, R. | Kadovic, R. (Sumarski fakultet, Beograd (Yugoslavia))
Products of wet and dry deposition of aero-pollutants, reached by over-boundary or internal-boundary transport, are significant source of pollution, almost, whole territory of Serbia (Yugoslavia). Products of wet and dry deposition endangere surface storages in two ways: (1) directly, by deposition on surface storages; (2) indirectly, by deposition on surface of catchment areas, and further transporting through hydrographic system. In the period 1992-1996 investigations were carried out at some localities in Serbia (Yugoslavia). Their results show that recorded quantities significantly over pass MDK (maximal permitted quantity). Investigations included analysis of samples of precipitation (rain and snow), soil and sediment from hydrographic system.
显示更多 [+] 显示较少 [-]Fast analytical method for pollution detection based on the ATP hydrolysis catalysed by ATPase
1997
Vujisic, Lj. (Institut za nuklearne nauke Vinca, Beograd (Yugoslavia). Laboratorija za fizicku hemiju) | Vasic, V. | Krstic, D. | Jovanovic, D. | Horvat, A. | Nikezic, G.
Spectrophotometric method for determination of inorganic phosphate liberated in hydrolysis of ATP catalyzed by ATPase was modified in order to obtain faster procedure, which could also be used in none laboratory conditions. The modification has some advantages compared to the most used Pennial method: a) the reagents are stable for several months; b) the 45 min procedure of phosphomolibdate extraction by isobutanole-benzene is ommited, and the method is not dangerous for the analyst; c) color develops after 20 min. The method was tested on the determination of inorganic phosphate in the presence of cadmium nitrate as inhibitor of ATPase activity. The results were compared to the results obtained by Pennial method. The results obtained have shown some good agreements.
显示更多 [+] 显示较少 [-]Metal-pollution index (MPI) - proposal for freshwater monitoring
1999
Teodorovic, I. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Prirodno-matematicki fakultet, Institut za biologiju) | Djukic, N. | Maletin, S. | Miljanovic, B.
MPI - Metal Pollution Index is being proposed with an aim improving the freshwater pollution control, monitoring and classification based on fish metal body burden. This is a simple mathematical model which enables presentation of Cd, Pb, Cu, Zn and Al fish liver concentration as a single value. After thorough studies of bioaccumulation, biomagnification and tissue distribution patterns, liver of Carassius auratus gibelio has been chosen as sentinel organ. Normal distribution and biological variation assessment is being achieved by using normalizers - reference values (liver concentrations of selected elements in fish from reference sites Vruje and Moharac micro water reservoirs, Serbia (Yugoslavia)). Selected representative sites have been evaluated according to new classification of freshwater ecosystem based on MPI values.
显示更多 [+] 显示较少 [-]Content of harmful and dangerous matter in waters for irrigation from Vizelj channel, Padinska Skela - Beograd [Serbia, Yugoslavia]
1999
Stefanovic, S. | Zdravkovic, M. (Institut za zemljiste, Beograd (Yugoslavia))
From two locations in the Vizelj channel (Serbia, Yugoslavia) in the early spring and before irrigation water samples were systematically taken in order to examination the content of harmful and dangerous matter. Content of Cd, Pb, Hg, As, Cr, Ni, F, Cu, B in water samples was analyzed. The origin of these elements in the water and the effect of potentinal pollutants were analyzed. Also, deviation of content of these elements from permissible amounts which were announced in the Book of Regulation was commented.
显示更多 [+] 显示较少 [-][Microbiological aspect of the water quality of small rivers in eastern Backa [Serbia, Yugoslavia]]
1999
Matavulj, M. | Radnovic, D. | Zeremski, J. | Bokorov, M. (Prirodno-matematicki fakultet, Novi Sad (Yugoslavia). Institut za biologiju)
According to microbiological parameters, waters of both small rivers of eastern Backa, Serbia (Yugoslavia), are slightly and moderately polluted by organic matter at the most of the investigated localities in summer season. The satisfactory power of water selfpurification has been preserved in these aquatic ecosystems. In order to prevent further eutrophication processes, certain measures of river water protection and conservation should be undertaken, especially in stagnant parts of investigated waters. Also, the regular monitoring of water quality should be established.
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