Heavy metals inParmelia sulcata collected in the neighborhood of a coal-fired power station
- 1 December 1994
- journal article
- Published by Springer Nature in Biological Trace Element Research
- Vol. 43-45 (1) , 207-212
- https://doi.org/10.1007/bf02917317
Abstract
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.Keywords
This publication has 2 references indexed in Scilit:
- Neutron activation analysis of reference materials by the k0-standardization and relative methodsAnalytica Chimica Acta, 1989
- Study of fly ash emission during combustion of coalEnvironmental Science & Technology, 1976