RESULTS ON LEAD (Pb) CONCENTRATION IN WILD FISH SQUALIUS CEPHALUS & BARBUS BARBUS TISSUES IN VARDAR RIVER, NORTH MACEDONIA
Journal Title: International Journal of Food Technology and Nutrition - Year 2019, Vol 2, Issue 3
Abstract
The concentrations of Lead (Pb) in fish from the Vardar river have been investigated in order to assess safety for consumers and the level of contamination. The selected tissues muscle, liver and skin of two fish species: European Chub (Squalius cephalus) and Common barbel (Barbus barbus) from Vardar river stream, Republic of North Macedonia. Samples are collected in nine different points (Hot Spots) in total distance of 301km and approximate 33km distance between sampling sites. During the experiment it was investigated the effect of environmental conditions and urban discharges on lead accumulation in muscles, liver and skin. The metal analyses were performed using Inductively coupled plasma mass spectrometry (ICP-MS). The average of metal concentrations (microgram per gram wet weight) in nine hot spots (HS) occurred in the following ranges:HS-1:muscles 0.10-liver 0.47-skin 0.06, HS-2:muscles 0.30-liver 0.18-skin 0.06HS-3: muscles0.10liver 0.11-skin0.00,HS-4:muscles 0.10-liver 0.61-skin 0.01 HS-5:muscles 0.10-liver 0.27-skin 0.00HS-6:muscles,0.10-liver0.17-skin 0.00, HS-7:muscles 0.10-liver 0.38-skin 0.00,HS-8:muscles 0.30-liver 0.68-skin 0.00and HS-9:muscles 0.15-liver 0.47-skin 0.00.The lowest levels of the lead were detected in the skin. The muscles and liver were found to accumulate the highest amounts of Pb. In case of organs, the highest levels were identified as follows: liver>muscles>skin. Further investigation of heavy metals is recommended, including a survey of fish consumption frequency among the local inhabitants.
Authors and Affiliations
Lulzim Shaqiri, Jani Mavromati, Vesna Zajkova
Keywords
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RESULTS ON LEAD (Pb) CONCENTRATION IN WILD FISH SQUALIUS CEPHALUS & BARBUS BARBUS TISSUES IN VARDAR RIVER, NORTH MACEDONIA
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