Evaluation of concentration of some metal ions in different lichen species of the Sul-Mato-Grossensse cerrado

Química Nova

Ré-Poppi, Nilva¹  Universidade Federal do Mato Grosso do Sul, Campo Grande, Brasil¹  Raposo Junior, Jorge Luiz¹  Honda, Neli Kika¹ 

关键词: lichens;    heavy metals;    multivariate statistics.;   

DOI  :  10.1590/S0100-40422007000300015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Concentrations of Fe, Mn, Co, Cr, Zn and Cu were determinated using flame atomic absorption spectrometry in nine lichen species of the Sul-Mato-Grossense cerrado. The average metal ion concentrations varied in the following ranges: Fe, 248.41-1568.01; Mn, 98.50-397.33; Co, 10.08-24.81; Cr, 18.24-44.26; Zn, 14.62-34.79 and Cu, 3.23-7.57 mg kg-1. Statistical analysis (Pearson and Cluster) applied to the metal ion concentrations indicated that the accumulation of these ions can be due to several anthropogenic sources including agricultural activities, mineral exploration, biomass burning, soil mineral composition and leather tanning processes by chromium.

【 授权许可】

Unknown