characterisation of heavy metals in lichen species hypogymnia physodes and evernia prunastri due to biomonitoring of air pollution in the vicinity of copper mine

lichen species (hypogymnia physodes and evernia prunastri) were used for biomonitoring thepossible air pollution with heavy metals in the vicinity of copper mine in the eastern part of the republic ofmacedonia. the contents of 18 elements were analysed by icp-aes and etaas techniques. for dataprocessing basic statistical methods and multivariate exploratory (factor and cluster analysis) techniques wereapplied. three geogenic and one anthropogenic group of elements were singled out from factor analysis. mapsof spatial distribution of elements from the anthropogenic group showed an increased content of the anthropogenicelements only in close vicinity to the mine. a maximum value obtained for cu content was 130 mg/kg and forpb content was 120 mg/kg. lichen talus of the collected species showed high retention power for accumulationof the anthropogenic group of elements compared to moss species sampled from the same study area (r=0.86and r=0.68). here we show that lichens can be use as biomonitors for atmospheric distribution of anthropogenicintroducedelements.