Measurement of Heavy Metals/Metalloids Levels with Using Dytiscidae (Coleoptera) Species, Collected from Six Different Cities of Turkey

This study was performed to determine the amount of some elements concentration in bodies of the aquatic insects. The contaminants, in six different polluted and non-polluted cities of Turkey, were determined with using predaceous diving beetles. Energy Dispersive X-Ray Fluorescence (EDXRF) spectroscopy was used for determining the concentrations of heavy metals/metalloids in the total body of the insects. Sixteen elements (Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr, and Pb) were measured quantitatively in all the samples. Two elements (In, Sn) were measured below the detection limits of EDXRF. Significant heavy metals/metalloids accumulation was seen in two cities and species. Comparison of the studied bio-monitors, Cybister lateralimarginalis showed significantly higher elements accumulation than the other species, so it may be considered as a more suitable species for assessment of heavy metals/metalloids pollution.

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