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

Öz

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.

Anahtar Kelimeler

• Aquatic insects
• EDXRF
• heavy metals/metalloids
• pollution
• Turkey

Türkiye’deki Altı Farklı Şehrin Ağır Metal/Metalloid Seviyesinin Dytiscidae (Coleoptera) Türleri Kullanılarak Ölçümü

Öz

Bu çalışma sucul böceklerin vücutlarında biriken bazı elementlerin konsantrasyonunu belirlemek için yapıldı. Türkiye’deki temiz ve kirli olan altı farklı şehirdeki inorganik bulaşanlar, predatör dalgıç böcekleri kullanılarak belirlendi. Böceklerin vücudundaki ağır metal/metalloid seviyesini belirlemede enerji ayrışımlı X ışını floresan spektrometresi (EDXRF) kullanıldı. Tüm türlerde 16 element (Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr ve Pb) nicel olarak ölçüldü. İki elementin (In, Sn) EDXRF’nin algılama sınırının altında olduğu görüldü. İki şehirde ve türde belirgin olarak ağır metal/metaloid birikimi gözlemlendi. Biyogözlemde kullanılan türler karşılaştırıldığında Cybister lateralimarginalis türü diğer türlere göre daha fazla birikim yapması nedeniyle ağır metal/metaloid takibinde daha uygun olacağı düşünüldü.

Anahtar Kelimeler

• Sucul böcek
• EDXRF
• ağır metal/metalloid
• kirlilik

Kaynakça

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