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Öğe Component Analysis and Determination of Heavy Metal Accumulation in Euphorbia macroclada Boiss (Nigde, Turkey)(ASIAN JOURNAL OF CHEMISTRY, 2013) Battaloglu, Rifat; Candar, Sabri; Yalcin, M. Gurhan; Yalcin, FusunThis study reports the heavy metal concentration of the plant macroclada boiss belonging to the Euphorbia type. Twenty stations which have different distances and different heights to the highway were chosen for this study from the separation of Nigde-Adana D750 highway Ali Hoca and Maden Village to Maden Village (Nigde, Turkey). The Cd, Cr, Cu, Ni and Pb concentrations of the sediment and plant samples got from those stations were studied through the ICP-OES technique. According to the arithmetic mean of the chemical analyses results, the highest values are Cr, Pb, Cu, Ni and Cd in earth; Ni, Cr, Cu, Pb and Cd in plants. The maximum values were shown in Cd: S1; Cr: S3; Cu: S10; Ni: S1; Pb: S3 stations in the earth and in Cd: S1; Cr: S1; Cu: S1; Ni: S1; Pb: S1stations in the plants. A high relationship level was defined between Cd vs. Cr, Ni, Pb; Cr vs. Ni, Pb and Ni vs. Pb in the earth and between Cd vs. Cr, Cu, Pb; Cr vs. Cu, Ni, Pb; Cu vs. Pb and Ni vs. Pb in the plants. According to the component analysis, the first factor is Cd, Cr, Ni, Pb and the second factor is Cu. On the other hand, the only factor represented the whole in the plants. The Model Summary analysis results in the earth is R-2 = 0,909 %, in the plant R-2 = 0,907 % and the samples were explained on a relatively high level. It was thought that the origins of the heavy metals showing positive high level relation are the same and the analysis area of Nigde-Adana D750 intercity highway are affected negatively due to the traffic.Öğe Determining the best model for estimation the monthly mean daily global solar radiation on a horizontal surface - A case study in Nigde, Turkey(EMERALD GROUP PUBLISHING LTD, 2015) Gungor, Afsin; Gokcek, Murat; Yalcin, Fusun; Kocer, Abdulkadir; Yaka, Ismet Faruk; Sardogan, Gozde TugceKnowledge of the local solar radiation is important for many applications of solar energy systems. The global solar radiation on horizontal surface at the location of interest is the most critical input parameter employed in the design and prediction of the performance of solar energy systems. In this study, 3 empirical sunshine based models are compared correlating the monthly mean daily global solar radiation on a horizontal surface with monthly mean sunshine records for Nigde, Turkey. Models are compared using coefficient of determination (R-2), the root mean square error (RMSE), the mean bias error (MBE) and the t-statistic. According to our results, all the models fitted the data adequately and can be used to estimate the specific monthly global solar radiation. The t-statistic was used as the best indicator; this indicator depends on both, and is more effective for determining the model performance. The agreement between the estimated and the measured data were remarkable and the method was recommended for use in Nigde, Turkey.Öğe Geomedical, ecological risk, and statistical assessment of hazardous elements in shore sediments of the Iskenderun Gulf, Eastern Mediterranean, Turkey(Springer, 2019) Yalcin, Mustafa Gurhan; Coskun, Bilgen; Nyamsari, Daniel G.; Yalcin, FusunThis study was carried out on the Iskenderun Gulf in Turkey to assess the hazardous element pollution level of sediments and potential risk level which they pose to the environment. Their hazardous element content was inspected using five statistical parameters, mineralogical studies; and six risk indices. Similarity of sample content is divided into five groups C1-C5. C1 had anomalous concentrations of Cr, Zn, and V; C2 had anomalous concentrations Mn, Zn, Cu, and Pb; C3 showed very high Cr concentration; C4 indicated anomalous Cr and V concentrations; and no anomaly is observed for C5 samples. Ni and Mn show a distinct disparity and Cr shows a wide disparity in variance to the other elements. Principal component analysis reveals most of Cu, Pb, Zn, and Cd, and majority of Mn and Fe are thought to have come from a geogenic source. Most of Ni, Co, and Mg along with majority of Sr, As, and Al are thought to have come from both geogenic and anthropogenic sources, while most of V and majority of Cr are thought to arise from anthropogenic sources. The Gulf thought to possess very high concentrations of Cr, Ni, and Co in most samples. No significant ecological risk is posed by samples BC-(35, 43, and 51), though anomalous concentrations are observed in the samples. On the other hand, samples BC-(16, 19-21, 25-28, 30, 37 and 38) pose moderate ecological risk, yet they possess no anomalous concentration. BC-(9, 10, 17, 18, 24, 32, 33, 53, 54, and 60) were observed to be of significant ecological risk. Cr is enriched in most of these samples with contaminated Geoaccumulation levels except in BC-(32 and 33) that are enriched with contaminated Geoaccumulation levels as BC 32 (Pb, Zn, Cd, Cu, and Mn) and BC 33 (Mn). Overall, pollution load index indicated that PLI > 1 for 34 samples are polluted with BC-32 (PLI = 6.98) being the most polluted sample, located around the industrial zone, and followed by samples 53, 54, 33, 24, and 60 with PLI (1.94-2.5).Öğe INVESTIGATION OF STATISTICAL RELATIONSHIPS BETWEEN Au, Ag, As, Ba, Cd, Cu, Fe, Pb, S, Sb, and Zn ELEMENTS OF ANTIMONY DEPOSIT IN NW CAMARDI -NIGDE (TURKEY)(STEF92 TECHNOLOGY LTD, 2016) Yalcin, Fusun; Tumuklu, Ali; Bortas, Serdar C.; Ilbeyli, NurdaneIn antimony deposit in NW Camardi-Nigde (Turkey), antimony produced by underground mining in the 1970s. 3 galleries are connected to each other and 2 galleries are independent. According to the geochemical and mineralogical-petrographical investigations, stibnite mineralization in the vein rocks may be about 70-80 wt %. In geochemical analysis of ore and hosted rocks from both inside and outside of the gallery, correlations between Sb and Au, Ag, As, Ba, Cd, Cu, Fe, Pb, S and Zn were investigated. In the correlation values, 50% and upper meaningful relationships have been taken into account. Accordingly, 7 positive relationships between the elements were determined and no meaningful negative correlation could be detected. Positive correlations are Zn-Cd: 0,84; Pb-Ag: 0,71; Pb-Cd: 0,65; Zn-Pb: 0,56; Fe-As: 0,54; Sb-S: 0,50 and Ag-Cd: 0,50. According to these results, Zn and Cd elements have the most powerful and Ag and Cd elements have the lowest significant positive correlation. There are numerous ore outcrops and quarries containing sphalerite (ZnS) and Galena (PbS) located in the area. Only Pb/Zn ores produced in these fields and Cd and Ag have been ignored. Cd and Ag potential in the area can be exposure by detailed geological explorations.Öğe Multivariate Statistics and Heavy Metals Contamination in Beach Sediments from The Sakarya Canyon, Turkey(ASIAN JOURNAL OF CHEMISTRY, 2013) Yalcin, M. Gurhan; Simsek, Gunseli; Ocak, Sema Bilge; Yalcin, Fusun; Kalayci, Yakup; Karaman, M. ErkanThe aim of the study is to determine heavy metal contents and their possible origins that represent the variability of The Sakarya Canyon coastal sediments. In addition to determine the source of heavy metals (natural and anthropogenic), simple and multivariate statistical analyses were applied to the samples. In all the samples, ignition loss ratio is between 0.01-0.09. 47.26 % of the samples, which have 0.5-0.25 mm, show very good sorting. G10, G19, G20 and G21 reflect the conditions of the irregular sedimentary environment. The heavy metals, Fe, Mg, Ti, Cr, Zn, Pb and Cu, are considered to come from near regions according to frequency histograms. By principal component analysis (PCA; factor 1: 40.911 %; factor 2: 21.558 %; factor 3: 13.548 %) and cluster analysis, heavy metals were formed three (3) groups. According to hierarchical cluster analysis, Q-type cluster at the similarity level of 50 % form three (3) different groups and they show the same features during pollution. These results reveal that they are highly reliable data for statistical data of model summary (according to the value R-2 = 100) and Anova 21 explanation value. According to maximum abundances As:G4; Ni:G7; Mg, Ti, Mn, Fe, V, Cr, Co, Nb:G13; Cu, Zr, Sn:G20; Al, Zn, Ga, Cd, Pb:G22 stations showed the highest anomaly. Influence of anthropogenic can be constituted in this region coming from port wastes, mining operations, road pollution, urban wastes and industrial wastes.Öğe Statistical approach by factor and cluster analysis on origin of elements from the Hamit Plutonic (Turkey) rock samples(Maden Tetkik Ve Arama Genel Mudurlugu-Mta, 2019) Yalcin, Fusun; Nyamsari, Daniel G.; Ilbeyli, Nurdane; Battaloglu, RifatThe Hamit pluton forms part of the Central Anatolian Crystalline Complex. It is located N-NE of Kaman (Kirsehir). It covers an area of about 120 km(2). The geochemical contents of 63 rock samples collected from this pluton were analyzed for their origin, homogeneity and relationship with crustal rocks. Their element contents were determined by using X-Ray Fluorescence spectroscopy. The samples were divided into 2 major groups based on their similarities: Group 1 contained 63.5% of the samples and indicated they were formed from melts whose contents might have evolved greatly due to crustal assimilation; while the 36.5% of samples belonged to Group 2, and show minimal evolution of the melt. According to the variation in K/Rb ratio versus SiO2 and the Rb/Zr versus SiO2 the initial melt had experience great evolution due to crustal assimilation. The initial melt is considered to have contained most of SiO2, TiO2, Fe2O3, MnO, MgO, CaO, P2O5, Sr, Zn, Cu, Ni, Co, Cr, Ba, Nd, Sc and V that formed the pluton, while majority of the Al2O3, Nb, Zr, U, Th, Pb, Ga, Rb, Ce and La are considered to have been derived from crustal contamination, and almost all of Na2O, K2O and Y are considered to have originated from crustal assimilation.
