Statistical and spatial analyses of correlations between spectral signatures and chemical data of lichens for environmental pollution assessing

Aim of the study is to evaluate the environmental impact of geothermic activities by the use of in site spectral analyses of different environmental components. Different analytical techniques have been applied basing on the study of the red edge shift (Gates et al., 1965). Interesting results have been achieved from vegetation and lichens which present evidences of correlation with chemical analyses when under stress conditions. The study allows to identify a quantitative method to measure the contamination index of plants and lichens.