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    Öğe
    Concentrations of some elements in the Bioindicator Organism Cladonia rangiformis Collected at the Vicinity of Canakkale
    (Foundation Environmental Protection & Research-Fepr, 2008) Cayir, Akin; Coskun, Muenevver; Coskun, Mahmut
    Lichen samples (Cladonia rangiformis) were collected at 10 different sampling sites to determine distribution patterns and concentrations of Al, Ba, Ca, Co, Fe, X, Li, Mg, Mn, Na, Ni, and Ti in lichen at the vicinity of Canakkale. Microwave digestion system was used for mineralization of lichen samples. The concentrations of elements were determined using ICP-OES and the map of spatial distribution of each element's was plotted. Results showed that the distribution patterns of Al, Fe, Ti, Co, and Li were similar in the study area. The highest concentrations of these five elements were determined in Balikesir-Balya region. The distribution of Na, Mg, Ca, and Sr were also similar, and the maximum concentrations of these elements were determined near the sea shore sampling stations.
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    Öğe
    Cross-border response of mosses to heavy metal atmospheric deposition in Southeastern Bulgaria and European Turkey
    (Springer, 2009) Coskun, Mahmut; Yurukova, L.; Cayir, A.; Coskun, Muenevver; Gecheva, G.
    First cross-border atmospheric pollution of 11 heavy metals and toxic elements assessed by Hypnum cupressiforme was reported for a part of Southeastern Europe (Southeastern Bulgaria and European Turkey). Moss monitoring technique followed the main requirements of European Moss Survey. Moss samples were collected in April 2006 both in Bulgaria and Turkey. Concentration of Al, As, Cd, Cr, Cu, Fe, Ni, Pb, Sb, V, and Zn were determined by ICP-AES. Interlaboratory parallel calibration (exchanged four moss samples from each country), standard reference moss materials (M2 and M3) results ensured the study. ANOVA showed no differences between measured results in both laboratories at the 99% confidence level. Principle Component Analyze proved two factors: F1 group of Al, As, Cd, Cr, Fe, Ni, and V and F2 of Cu, Pb, and Zn as main atmospheric pollutants. Results obtained showed approximately Cu and Pb high concentrations around Istanbul and Burgas and Zn pollution in Istanbul district. Arsenic cross-border atmospheric pollution in the study area of Southeastern Europe was found.
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    Öğe
    The Heavy Metal Content of Wild Edible Mushroom Samples Collected in Canakkale Province, Turkey
    (Humana Press Inc, 2010) Cayir, Akin; Coskun, Muenevver; Coskun, Mahmut
    In this study, concentrations of heavy metals (Cd, Cr, Cu, Pb, and Zn) were determined in three edible mushroom species (Lactarius deliciosus, Russula delica, and Rhizopogon roseolus) collected in five sampling sites in Canakkale province, Turkey. Mean values of Cd, Cr, Cu, Pb, and Zn were 0.72, 0.26, 28.34, 1.53, and 64.62 mg/kg, respectively. The highest concentrations of Cd, Cu, Pb, and Zn were determined in species R. delica, while Cr was observed in L. deliciosus. In terms of the nutritional aspect, taking into account the concentration of Provisional Tolerable Weekly Intake recommended by FAO/WHO, the maximum concentration of Cd is a restrictive factor for consumption of the collected mushroom species. The concentrations of the other elements have no health risks when consumed at optimal levels.