Izvorni znanstveni članak
https://doi.org/10.37023/ee.7.2.2
Monitoring of some dissolved heavy metals in surface waters of north-west Croatia from year 2016 to 2018
Patricia Mlinarić
; Faculty of Geotechnical Engineering, University of Zagreb, Varazdin, Croatia
Nikola Sakač
orcid.org/0000-0001-5515-2368
; Faculty of Geotechnical Engineering, University of Zagreb, Varaždin, Croatia
Anita Ptiček Siročić
; Faculty of Geotechnical Engineering, University of Zagreb, Varaždin, Croatia
Irena Tomiek
; Croatian Institute of Public Health in Varaždin county, Varaždin, Croatia
Sažetak
Heavy metals have a negative impact on environment and wildlife. In waters, heavy metals appear in two forms, as dissolved and bioavailable; and as solid and non-soluble. We monitored the concentration of dissolved copper, nickel, manganese and iron in water samples at five river locations of north-west Croatia from 2016 to 2018. Concentrations of dissolved nickel measured at Melačka river, near Vularija in Međimurje county and HE Čakovec dam, near Štefanec in Međimurje county were below 5 µg/l and could be considered as not polluted. Concentrations of dissolved copper measured at Plitvica river, near Zbela in Varaždinska county and Horvatska, near Veliko Trgovišće in Krapinsko-Zagorska county were mostly below 5 µg/l and could be considered as not polluted. At Kosteljina river near Jalšje at the Krapinsko-Zagorska county concentrations of dissolved copper were mostly below 5 µg/l; concentrations of dissolved manganese and iron were higher especially during second part of the year, with some fluctuations. For this reason, Kosteljina river could be considered as medium polluted.
Ključne riječi
heavy metals, pollution, north-west Croatia rivers
Hrčak ID:
247260
URI
Datum izdavanja:
7.12.2020.
Posjeta: 890 *