Source Apportionment of Atmospheric Trace Element Deposition

Samples of lichen species (Xanthoria parietina) collected from Aegean Region of Turkey were analyzed by instrumental neutron activation analysis to determine the concentrations of 31 elements. The elements (Au, Rb, Zn, Hg, Sb, Cd, As, Cl, Br, and Se) showed enrichment with respect to the crustal composition. It has been hypothesized that lichen data can be examined more meaningfully without the inclusion of elements K, Mg, Ca, and Mn in the factor analysis. Four factors explaning 77.2% of the total variance were identified. The first factor represented the crustal elements Al, Na, Sc, Cr, Fe,... Mehr ...