[Hygienic aspects of water quality from the Danube River in Novi Sad].
In order to assess the water quality of the Danube river during the bathing season (June, 15. -September, 15.) from 1992-1995, water was examined every day (bacteriologically and chemically) while "big chemistry", hybrid analysis and determination of physiologic groups were performed every other week at the locality of the most beautiful beach called Strand in Novi Sad. Analyses showed that water did not meet criteria of the II class quality in regard to microbiologic requirements in 63.44% of samples (n = 372) and in 6.45% of samples in regard to chemical requirements (n = 372). On the basis of zooplankton and phytoplankton distribution, water of the Danube river belongs to the demanded class of betamesosaprobicity (saprobic index after Pantle-Buck 1.9-2.33). According to Kohl categorization, water belongs to the II and III class. Analyses of the nonspecific bacteriophage point to the most common occurrence of bacteriophage for Shigella sonnei. Salmonella paratyphi B and Shigella flexneri 2-a, which points to earlier fecal contamination. In regard to physiologic groups, water contained heterogenic organic materials. On the basis of occurrence of oligotrophs and heterotrophs, the process of self-purification is mostly satisfactory. The most important causes of chemical contamination were as follows: supersaturation and saturation, decreased oxygen concentration, increased use of BPK5, as well as increased concentrations of iron, barium, arsenic, total dissolving phenols, and occasionally strontium and chloroform. Remains of organochlorine insecticides used to be found in earlier periods.
Kristoforović-Ilić
M
M
Institut za zastitu zdravlja, Medicinski fakultet, Novi Sad.
D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000032:analysis*; D015022:Yugoslavia
D014874:Water Pollutants, Chemical