Concentrations of some heavy metals in water, sediment and fish species from the Atatürk Dam Lake (Euphrates), Turkey

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“…It was mentioned that heavy metal levels in different species depend on biometric properties of the fish (Linde et al, 1998;Al-Yousuf et al, 2000), and their feeding habits (Amundsen et al, 1997;Romeoa et al, 1999;Mormede and Davies, 2001;Watanabe et al, 2003). Karadede and Unlu (2000) studied the concentrations of some trace metals in various species from Ataturk Dam Lake (Euphrates, Turkey). They did not determine Cd, Hg and Pb in the fish muscles, and reported lower amounts of Zn and Cu than the limits similar to those in our study.…”

“…They reported lower amounts of Zn and Cu, but higher Cd and Pb than our results determined for the same species. Karadede and Unlu (2000) …”

“…Zinc, copper, arsenic, cadmium, mercury and lead are considered to be harmfull for human when their amount is over the limits in fish muscle (Anonymous, 2002). It is known that Silurus triostegus, Acanthobrama marmid, Aspius vorax, Capoeta trutta, Carasobarbus luteus, Chalcalburnus mossulensis and Cyprinus carpio are the most common species, and they are considered to be an essential part of the diet in the region (Kuru, 1978;Karadede and Unlu, 2000). The aim of this study is to determine the Zn, Cu, As, Cd, Hg and Pb levels of the most popular species from Ataturk Dam Lake, therefore to estimate the pollution of Euphrates River, which is important for Turkey and for Syria and Iraq.…”

Correlations between Geo-Chemical Speciation of Heavy Metals (Cu, Zn, Pb, Cd and Ni) in Surface Sediments and Their Concentrations in Giant Mudskipper (<i>Periophthalmodon schlosseri</i>) Collected from the West Coast of Peninsular Malaysia

“…It has been reported [33] [34] Bradley and Morris (1986); Wagner and Boman (2003) that fish muscle as a poor accumulator of Pb. It is generally accepted that muscle is not an active tissue in accumulating heavy metals [35] (Karadede and Ünlü, 2000) due to low levels of binding proteins in the muscle tissue. Table 5 shows correlation between different geochemical fractions of Cd in the sediments and Cd concentration in different tissues of P. schlosseri.…”

Assessing the heavy metal contamination of soils in the water-level fluctuation zone upstream and downstream of the Manwan Dam, Lancang River

“…The toxicity and mobility of heavy metals in soils depend on the total concentration, their specific chemical form, their binding state, the metal properties, environmental factors and soil properties, redox conditions and root exudates acting as chelates (Nyamangara 1998;Rodríguez et al 2009). Many research projects have been mainly focused on the spatial variation and assessing the heavy metals in the sediments and fresh water in the reservoir (Audry et al 2004;Avila-Pérez et al 1999;Karadede and Ünlü 2000;Loska and Wiechula 2003). In fact, the riparian zones have also been of great concern, as they can be an effective sink for heavy metals because of the integration and accumulation of pollutants from both the aquatic and terrestrial environments (Tam and Wong 2000).…”