Water Quality of the Trstionica River (Bosnia and Herzegovina)

• Published in: Kemija u industriji; časopis kemičara i tehnologa Jugoslavije Vol. 69; no. 7-8; pp. 371 - 376
• Main Authors: Delibašić, Šuhreta, Huremović, Jasna, Žero, Sabina, Gojak-Salimović, Sabina
• Format: Journal Article
• Language: English
• Published: Croatian Society of Chemical Engineers 01-01-2020
• Subjects: aas; chlorides; metals; phosphates; pollution; preconcentration; trstionica river
• ISSN: 0022-9830; 1334-9090
• DOI: 10.15255/KUI.2019.061

The present study was conducted to investigate the water quality of the Trstionica River, Bosnia and Herzegovina. The physicochemical properties (temperature, pH, conductivity, total solids after evaporation at 105 °C), content of metals (calcium (Ca), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), sodium (Na), nickel (Ni), lead (Pb) and zinc (Zn)), and anions (chloride (Cl–), and phosphate (PO43–)) were determined in water samples collected at seven locations during two sampling periods: unstable weather conditions (precipitation), and stable weather conditions (without precipitation). There was a significant difference in the content of individual parameters in the river water depending on the sampling time. For determination of metals concentrations, which were below the limit of detection, a preconcentration method using an ion-exchange resin was applied. The metals concentrations during the rainy day were in the order Ca > Mg > Na > Fe > Cu > Zn > Pb > Mn with mean values of 343, 6.03, 1.94, 0.18, 0.20, 0.03, 0.02, 0.01 mg dm–3, respectively, and during stable weather conditions: Ca > Mg > Na > Cu > Fe > Mn > Zn with mean values of 288, 7.62, 2.38, 0.11, 0.10, 0.01, 0.01 mg dm–3, respectively. Cd, Cr, and Ni concentrations were below limit of detection in both cases. Obtained values were compared with World Health Organization (WHO) regulations. The results showed that the Trstionica River in the investigated part of the stream meets most of the parameters required by the regulations. The correlation between analysed parameters was assessed, as well. Based on the calculated water quality index values, the water of Trstionica River falls into the category of excellent water.
Ova je studija provedena kako bi se istražila kvaliteta vode rijeke Trstionice, Bosna i Hercegovina. Fizikalno-kemijska svojstva (temperatura, pH, vodljivost, ukupna kruta tvar nakon isparavanja pri 105 °C), sadržaj metala (Ca, Cd, Cr, Cu, Fe, Mg, Mn, Na, Ni, Pb i Zn) i aniona (kloridi i fosfati) određeni su u uzorcima vode prikupljenim na sedam lokacija tijekom dva razdoblja uzorkovanja: nestabilni vremenski uvjeti (oborine) i stabilni vremenski uvjeti (bez oborina). Došlo je do značajne razlike u sadržaju pojedinih parametara u riječnoj vodi, ovisno o vremenu uzorkovanja. U slučaju metala, čije su koncentracije bile ispod granice detekcije primijenjene metode (FAAS), primijenjena je metoda predkoncentracije upotrebom ionsko-izmjenjivačke smole. Koncentracije metala tijekom kišnog dana bile su u redoslijedu Ca > Mg > Na > Fe > Cu > Zn > > Pb > Mn sa srednjim vrijednostima 343, 6,03, 1,94, 0,18, 0,20, 0,03, 0,02, 0,01 mg dm–3, odnosno za vrijeme stabilnih vremenskih uvjeta: Ca > Mg > Na > Cu > Fe > Mn > Zn sa srednjim vrijednostima od 288, 7,62, 2,38, 0,11, 0,10, 0,01, 0,01 mg dm–3. Koncentracije Cd, Cr i Ni su bile ispod granice detekcije primijenjene metode u oba slučaja. Dobivene vrijednosti uspoređene su s propisima Svjetske zdravstvene organizacije. Rezultati su pokazali da rijeka Trstionica u istraživanom dijelu toka ispunjava većinu parametara propisanih legislativom. Također su procijenjene korelacije između analiziranih parametara. Na temelju izračunatih vrijednosti indeksa kakvoće vode, Rijeka Trstionica spada u kategoriju izvrsne vode.