Concentrations of As, Cd, Cu, Fe, Hg, Pb and Zn in muscle tissue of common nase, chub and wels catfish from the Medjuvršje reservoir
cKoncentracije As, Cd, Cu, Fe, Hg, Pb i Zn u mišićnom tkivu skobalja, klena i soma sa akumulacije Međuvršje
2018
Document Type:
Conference object (Published version)
,
© 2018 by the University of Belgrade
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Show full item recordAbstract:
During the survey conducted in 2012, 2013 and 2014, 67 specimens of common nase, chub and wels catfish were collected on the Medjuvršje reservoir. In the muscle tissue of the individual, the level of accumulation of hazardous elements (As, Cd, Cu, Fe, Hg, Pb, Zn) is determined and compared with the MAC values established by the national regulations and legislation, as well as FAO and EU. Muscle samples were tested for the presence and concentration of selected elements using optical emission spectroscopy (ICP-OES). Collection of ichthyological material on the reservoir was carried out using a set of fishing nets with a diameter of 10-80 mm. Reservoir Međuvršje is located in the outlet of the Ovčarsko-Kablar gorge. The Zapadna Morava river upstream of the accumulation is characterized by an intensive emission of industrial, communal and wastewater from rural households, since no settlements or factories do not have systems for water purification. The fish species used in this research are the most frequently fished and most attractive fishing types of Međuvršje reservoir used in human nutrition.
The aim of the paper is to examine the safety of meat use of three fish species in human nutrition from the point of view of the hazardous elements presence and comparison with the prescribed limit values (MAC).
The measured values of the elements were several times below the prescribed MAC values. Arsenic values were in the range 0.057-0.153 μg/g and the highest values were recorded in common nase. Cadmium was only registered in 2013 in the chub muscle tissue (0.002 μg/g). Copper values ranged 0.006-0.132 μg/g and the highest values were in chub; Fe was in the range 0.503-8.79 μg/g and the highest values were in the wels catfish; Hg was in the range 0.043-0.077 μg/g and the highest values were in chub; Pb was in the range 0.03-0.134 μg/g and the highest values were in the wels catfish, and Zn was in the range 1.387-20.049 μg/g and the highest values were in chub. The results show a safe use of the analysed fish species for human consumption.
Keywords:
hazardous elements; muscle tissue; fish; reservoirIn:
- Soković M, Tešić Ž, editors. Unifood conference: Programme & Book of Abstracts; 2018 Oct 5-6; Belgrade, Serbia. Belgrade: University of Belgrade; 2018. p. 176.