title: Heavy metal accumulation in the bark and leaves ofJuglans regiaplanted in Artvin City, Turkey.
abstract: The aim of this study was to determine the level of heavy metals such as copper, iron, manganese, zinc, lead, nickel, cadmium and chromium concentrated inJuglans regiabark and leaf samples from different localities in Artvin, Turkey. Analysis of the heavy metals Cu, Fe, Mn, Zn, Pb, Ni, Cd and Cr in samples was carried out by inductively coupled plasma optical emission spectroscopy (ICP-OES; Perkin Elmer, Optima 8000 DV). Statistical significance was determined by analysis of variance (ANOVA). The comparisons were performed in order to determine whether there were any differences betweenJ. regiabark and leaf samples in terms of average heavy metal accumulation levels. As a result of this study, the following mean concentrations were determined forJ. regiabark samples: the contents of Cu, Fe, Mn, Zn, Pb, Ni, Cd and Cr (μg g-1, dry weight) ranged from 72.46 to 88.14, 14.40 to 628.0, 0.896 to 67.71, 7.000 to 28.52, 0.040 to 0.905, 1.031 to 2.744, 0.011 to 0.158 and 1.192 to 3.134, respectively. On the other hand, forJ. regialeaf samples, the contents of Cu, Fe, Mn, Zn, Pb, Ni, Cd and Cr (μg g-1, dry weight) ranged from 0.339 to 13.80, 12.72 to 698.2, 1.001 to 204.6, 7.362 to 56.03, 0.158 to 0.665, 0.130 to 2.744, 0.041 to 0.114 and 0.508 to 2.767, respectively. In the statistical analysis, heavy metal accumulation values ofJ. regiabark and leaf samples for Cu, Ni and Cr were significantly different (P< 0.05).
authors.affiliation: Buca Faculty of Education, Dokuz Eylul University , Izmir , Turkey.
authors.forename: Yunus
authors.initials: Y
authors.lastname: Dogan
authors.affiliation: Faculty of Education, Artvin Coruh University , Artvin , Turkey.
authors.forename: Mehmet C
authors.initials: MC
authors.lastname: Unver
authors.affiliation: Buca Faculty of Education, Dokuz Eylul University , Izmir , Turkey.
authors.forename: Ilker
authors.initials: I
authors.lastname: Ugulu
authors.affiliation: Faculty of Education, Artvin Coruh University , Artvin , Turkey.
authors.forename: Mesude
authors.initials: M
authors.lastname: Calis
authors.affiliation: Faculty of Education, Pamukkale University , Denizli , Turkey.
authors.forename: Nazmi
authors.initials: N
authors.lastname: Durkan
keywords: Artvin; ICP–OES; Juglans regia; bark; heavy metal; leaf