Heavy metals inParmelia sulcata collected in the neighborhood of a coal-fired power station
- M. Carmo Freitas
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The epiphytic lichenParmelia sulcata was collected in the neighborhood of a Portuguese coal-fired power station (Sines coal power station) as monitor for heavy metal air pollution. A study of the metal contents variability along 1991 and 1992 was performed. The heavy metals Ag, As, Br, Co, Cr, Fe, Hg, Sb, Se, and Zn were determined byk 0-based instrumental neutron activation analysis. The concentrations found in 1991 and 1992 show an accumulating process of Co and Fe (≈5%/mo) and of Cr and Sb (≈7%/mo). Low accumulation is observed for Ag, Se, and Zn (≈2%/mo), and no concentration variation is observed for As, Br, and Hg. It is concluded that the metal accumulation observed is the result of the nearby ash and coal deposits.
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- Heavy metals inParmelia sulcata collected in the neighborhood of a coal-fired power station
Biological Trace Element Research
Volume 43-45, Issue 1 , pp 207-212
- Cover Date
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- Humana Press
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- Heavy metals
- air pollution
- coal station
- neutron activation analysis
- Industry Sectors
- M. Carmo Freitas (1)
- Author Affiliations
- 1. Instituto de Ciências e Engenharia Nucleares, Departamento de Química, Instituto Nacional de Engenharia e Tecnologia Industrial (INETI), P-2685, Sacavém, Portugal