Details

Autor(en) / Beteiligte

• Yancheva, Vesela
• Stoyanova, Stela
• Velcheva, Iliana
• Petrova, Slaveya
• Georgieva, Elenka

Titel

Metal bioaccumulation in common carp and rudd from the Topolnitsa reservoir, Bulgaria

Ist Teil von

• Arhiv za higijenu rada i toksikologiju, 2014-03, Vol.65 (1), p.57-66

Ort / Verlag

Croatia: De Gruyter Open

Erscheinungsjahr

2014

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Concentrations of arsenic (As), cadmium (Cd), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn) were determined in water samples and five fish organs (gills, liver, kidney, spleen, and muscle) of common carp (Cyprinus carpio L.) and common rudd (Scardinius erythrophthalmus L.) from the Topolnitsa reservoir (Bulgaria) in three seasons (spring, summer, and autumn). This water ecosystem is located in a copper mining and metallurgical region. Water metal concentrations were significantly higher in the summer than in the spring (p<0.05). Moreover, As, Cd, Cu, and Zn concentrations were higher than the national limits. Qualitative factors “element” and “fish organ” had a stronger influence on metal bioaccumulation than the factors “season” and “fish species”. In fish, the highest metal levels were detected in the liver, spleen, kidney and gills, and the lowest in the dorsal muscle. Tissue levels were higher in the summer, but in general they were similar between the two Cyprinid fish. Fish muscles had the lowest metal levels at all times, but As and Pb exceeded the national and international standards. Therefore, we would not recommend fish consumption from Topolnitsa, as continuous metal contamination of the reservoir may seem to present human health risk. Izmjerena je koncentracija arsena (As), kadmija (Cd), bakra (Cu), nikla (Ni), olova (Pb) i cinka (Zn) u uzorcima vode te škrgama, jetrima, bubregu, slezeni i leđnom mišiću šarana (Cyprinus carpio L.) i crvenperke (Scardinius erythrophthalmus L.) iz umjetnog jezera Topolnitsa (Bugarska) tijekom tri godišnja doba (proljeće, ljeto i jesen) 2012. Taj se ekosustav nalazi u regiji poznatoj po rudnicima bakra i metalurgiji. Koncentracija metala u vodi bila je značajno viša u ljeto nego u proljeće (p<0.05), a koncentracija As, Cd, Cu i Zn prelazila je razinu dopuštenu državnim odredbama. Kvalitativni čimbenici “element” i “riblji organ” jače su utjecali na akumulaciju metala od čimbenika “godišnje doba” i “riblja vrsta”. Najviša razina metala u riba izmjerena je u jetrima, slezeni, bubregu i škrgama, a najniža u leđnom mišiću. Razina u tkivima bila je malo viša u ljeto, ali se uglavnom nije razlikovala između ribljih vrsta. Mišićna je razina cijelo vrijeme bila niska, ali su zato As i Pb bili iznad domaćih i međunarodnih normi. Stoga ne preporučujemo konzumaciju ribe iz Topolnitse s obzirom na to da stalno zagađenje umjetnog jezera za sobom povlači zdravstvene rizike.