Dicle Nehri'nin belirli lokalitelerinde sedimentte ölçülen bazı ağır metallerin mevsimsel değişimi

Year 2017, Volume: 19 Issue: 2, 77 - 86, 28.09.2017

Çiğdem Kaymak Abay

https://doi.org/10.25092/baunfbed.340431

Abstract

Bu çalışmada, Eylül 2013- Eylül 2014 tarihleri arasında Dicle Nehri'nde
belirlenen üç lokaliteden alınan sediment örneklerinde Cu, Ni, Co, Zn, Cd ve Pb
konsantrasyonlarının belirlenmesi amaçlanmıştır.  Örneklerin analizleri ICP-OES cihazı ile
yapılmıştır. Sedimentlerde yapılan ağır metal analizlerinde Cu, Ni, Co, Zn ve
Pb üç lokalitede de her mevsim ölçülürken, Cd metali ise çalışma süresince
ICP-OES cihazının analiz limitinin altında kaldığı için tespit edilememiştir. I.
lokalitede analiz edilen tüm metaller sonbaharda; II. lokalitede Zn yaz, diğer
metaller sonbaharda; III. lokalitede Zn ve Pb ilkbaharda, Cu, Ni ve Co ise
sonbaharda en yüksek değerlerde ölçülmüştür. Sonuç olarak, sedimentte limit
değer olarak kabul edilen PECs (Probable Effects Concentration) verilerine göre
sadece Ni metali tüm lokalitelerde yüksek bulunmuştur.  

Keywords

Dicle Nehri, sediment, ağır metal, ICP-OES

The seasonal variations of some heavy metals measured ın sediment at specific lokalities of Tigris River

Abstract

In this study, it was aimed to determine Cu, Ni, Co, Zn, Cd and Pb
concentrations in sediment which was taken from between September 2013 and
September 2014 at three localities of 
Tigris River. Analysis of the samples was carried out by ICP-OES device.
Cu, Ni, Co, Zn and Pb were measured at all seasons of three locality in heavy
metal analyzes in sediments, while Cd metal was not detected because it was
below the limit of analysis of ICP-OES during the study period. The highest
values were measured in I. locality all metals in the fall; II. locality Zn
summer, other metals in the fall; III. locality Zn and Pb in the spring, Cu, Ni
and Co metals in autumn. As a result, according to the PECs (Probable Effects
Concentration), which is accepted as the limit value of sediment, only Ni metal
is found higher in all localities.

Keywords

Tigris River, sediment, heavy metal, ICP-OES

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