Original scientific paper
Effects of Magnesium, Chromium, Iron and Zinc from Food Supplements on Selected Aquatic Organisms
Jasna Bošnir
; Institute of Public Health Andrija [tampar, Zagreb, Croatia
Dinko Puntarić
; »Josip Juraj Strossmayer« University, School of Medicine, Osijek, Croatia
Želimira Cvetković
; Institute of Public Health Andrija [tampar, Zagreb, Croatia
Lea Pollak
; Croatian Public Health Institute, Zagreb, Croatia
Lidija Barušić
; Institute of Public Health Andrija [tampar, Zagreb, Croatia
Ivana Klarić
; »Josip Juraj Strossmayer« University, Faculty of Agriculture, Osijek, Croatia
Maja Miškulin
; »Josip Juraj Strossmayer« University, School of Medicine, Osijek, Croatia
Ida Puntarić
; University of Zagreb, School of Medicine, Zagreb, Croatia
Eda Puntarić
; University of Zagreb, Faculty of Science, Zagreb, Croatia
Milan Milošević
; University of Zagreb, School of Medicine, Zagreb, Croatia
Abstract
The aim of this study was to determine the effect of uncontrolled environmental disposal of food supplements contain- ing magnesium (Mg), chromium (Cr), iron (Fe) and zinc (Zn) on selected aquatic organisms including freshwater algae Scenedesmus subspicatus and Raphidocelis subcapitata, water flea Daphnia magna and duckweed Lemna minor. Thirty different food supplements containing Mg, Cr, Fe and Zn were analyzed. Results were expressed as effective con- centration 50 (EC 50 ), i.e. growth inhibiting Mg, Cr, Fe and Zn (mg/L) concentration immobilizing 50% of treated organ- isms. Particular metal EC 50 differed significantly (p<0.001) among study organisms, as follows (in ascending order): Scenedesmus subspicatus EC 50 Fe (median 46.9 mg/L)
Keywords
food supplements; aquatic organisms; ecosystem; toxicity; Croatia
Hrčak ID:
118304
URI
Publication date:
30.9.2013.
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