Yazar "Kadioglu, Yusuf Kagan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Assessment of heavy metal levels in sediment samples of Kapulukaya Dam Lake (Kirikkale) and lower catchment area
    (Springer, 2013) Kankilic, Gokben Basaran; Tuzun, Ilhami; Kadioglu, Yusuf Kagan
    In this study, the concentrations of 13 elements (Al, Fe, Mn, Cr, Ni, Zn, Co, As, Pb, Cu, Mo, Hg, and Cd) were determined in the sediments of three different sites in the Kapulukaya Dam Lake between May 2007 and November 2008. They ranged from 1.47 to 4.64 for Al, 0.92 to 3.48 for Fe (in percent), 326.60 to 1053.00 for Mn, 98.00 to 1,116.00 for Cr, 24.70 to 127.10 for Ni, 14.80 to 124.20 for Zn, 11.0 to 43.20 for Co, 5.00 to 29.30 for Cu, 9.10 to 69.70 for As, 8.60 to 34.00 for Pb, 2.50 to 5.20 for Mo, 1.00 to 1.60 for Hg, and 0.50 to1.80 for Cd in microgram per gram dry weight sediment. The contamination degree of the sediment was assessed on the basis of enrichment factor and corresponding sediment quality guideline. The calculated enrichment factors (EF, measured metal vs. background concentrations) indicated that the effect of man-made activities on the occurrence of concentrations could be accounted for the majority of heavy metals namely Mn, As, Ni, Cu, Zn, Cr, Co, Mo, and Cd, whereas such affect was not detected for Hg and Pb. The maximum values of the EF were represented by As, minimum values by Hg at all sites. Mean EF values were 36.60 and 0.70 for As and Hg, respectively. This study has clearly assessed a certain level of heavy metal pollution in the region, based particularly on the findings from sediment.
  • [ X ]
    Öğe
    Determination of the chemical composition in the kapulukaya reservoir sediment by using the pedxrf method
    (Parlar Scientific Publications (P S P), 2011) Basaran, Gokben; Tuzun, Ilhami; Toyran, Kubilay; Kadioglu, Yusuf Kagan
    In this study a multi-element analysis was conducted on the contents of the sediments found at three different sites in the Kapulukaya Dam Lake between May 2007 and November 2007. The elemental analysis of the sediment samples was carried out by using the technique of Polarized Energy Dispersive X-ray Fluorescence (PEDXRF). Of twenty three elements, Cr, Ni, Hg demonstrated high levels of contamination at all sites and As at site 3 according to the criteria set for threshold effect concentrations and probable effect concentrations. The accuracy and precision of the technique employed for conducting the chemical analysis were demonstrated by analyzing the G01-GSD-09 sediment and the K04-NIST-2704 river sediment. Measured concentrations reached at average of 92.7 % and 89.9 % accuracy on the standards used, respectively. The present investigation revealed the effectiveness of this technique in analyzing the sediment content.