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2663223 
Journal Article 
DETERMINATION OF HEAVY METALS IN LEAVES AND BARK OF POPULUS NIGRA L BY ATOMIC ABSORPTION SPECTROMETRY 
Barbes, L; Barbulescui, A; Radulescu, C; Stihi, C; Chelarescu, ED 
2014 
Romanian Reports in Physics
ISSN: 1221-1451 
66 
877-886 
The aim of this paper was to study the metal accumulation in leaves and bark of Populus nigra L from atmosphere or soil. The heavy metals, including Cu, Ni, Zn, and Cd, concentrations were determined by atomic absorption spectrometry (AAS) in leaf, bark and soil samples collected from two polluted areas (i.e. Navodari Camp and Navodari Fertilizer Chemical Plant), in Romania. To determine the relationship between the metals concentration in leaves and bark and metals concentration in soil, the regression analysis has been performed and the values of the determined coefficient R-2 have been studied. 
heavy metal; Populus nigra L.; regression analysis