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Öğe ASSESSMENT OF HEAVY METAL CONTAMINATION IN SOIL AND WHEAT (Triticum Aestivum L.) PLANT AROUND THE CORLU-CERKEZKOY HIGHWAY IN THRACE REGION(Global Network Environmental Science & Technology, 2012) Ekmekyapar, F.; Sabudak, T.; Seren, G.Pollution caused by traffic activities is increasingly becoming a great threat to human health in the region of Thrace in north-west of Turkey. Thirty six soil and plant samples were collected from the vicinity of Corlu-Cerkezkoy Highway. The samples were taken at distances of, 1, 25, 50, 100, 250 and 500 m from the highway. The each plant sample was divided into two subsamples. One subsamples of each plant was washed with with distilled water, while other part was not washed and were analyzed without any washing. All samples were analyzed for their heavy metal concentrations (Pb, Zn, Cd, Cu, Ni, Mn, Cr and Fe). The results showed that the soils in the study area were polluted by Pb. The lead concentration in the soil showed values from 19 +/- 0.2 mg kg(-1) to 351 +/- 0.3 mg kg(-1) and found to be higher than the allowable maximum limits in soils. The manganese levels of soils were slightly high and varied from 182 +/- 0.1 mg kg(-1) to 806 +/- 0.1 mg kg(-1). In this study, metal concentrations of unwashed plant samples were higher than those of the washed ones. This study indicated that the heavy metal contents decreased with increasing distances from the highway in unwashed plants.Öğe Determination of copper, zinc and lead contents in sunflower plants(Scibulcom Ltd, 2007) Sabudak, T.; Seren, G.; Kaykioglu, G.; Dincer, A. R.Trace elements are considered to be one of the main sources of pollution in the environment since they have a significant effect on its ecological quality. The determination of trace elements in plant samples is very important in monitoring environmental pollution. Recently, both international and the Turkish studies have drawn attention to the metal pollution of plant specimens. But, such a study has not been yet carried out in Corlu, Turkey. In this study the concentrations of trace elements (copper, zinc and lead) in the sunflower plants collected from Corlu, Turkey, were determined by flame atomic absorption spectrometry (FAAS). In the determinations by FAAS, a standard addition technique was used because of the influence of possible interference present in the sample tested. The area of the study included the textile factories in the vicinity of Corlu, which is a developing industrial center in the Trakya zone, Turkey. In addition, sunflower plants are the plants most grown in Corlu. The sunflower plants collected from the locations were broken into plants parts (root, stern, leaves, head, seed), washed with distilled water and dried at 110 degrees C for 24 h. Then plant parts were digested by wet ashing procedures. The concentrations of Cu, Zn and Ph elements in plant parts were determined by FAAS. The Cu concentrations were 3.25 +/- 0.09, 2.30 +/- 0.05, 7.80 +/- 0.20, 4.70 +/- 0,11 and 11.25 +/- 0.12 ing kg(-1), the Zn concentrations were 5.15 +/- 0.17, 18.8 +/- 0.69, 20.3 +/- 0.45, 2.35 +/- 0.06 and 40.4 +/- 0.33 mg kg(-1) in root, stern, leaf, head and seed, respectively. The lead concentrations were not detected by FAAS because of the very low analyte concentration. The obtained results were compared to those in literature.Öğe Determination of vitamin e (?-tocopherol) in canola oils by high performance liquid chromatography(Georg Thieme Verlag Kg, 2011) Karasakal, A.; Seren, G.[Abstract Not Available]
