DETERMINATION OF AIRPOLUTION ZONES IN KNJAZEVAC (SOUTH EASTERN SERBIA) BY USING EPIPHYTIC LICHENS

Airpollution investigations have not been done in Knjazevac until now. In this work, method of bioindication by lichens has been used. On 18 investigated points it has been found 22 lichen taxa from 12 genera. By calculating Index of Atmospheric Purity (IAP) 2 zones with different air pollution (lichen desert and transitional zone) has been found. The most sensitive species in Knjazevac are Buelia punctata, Melanelia acetabulum, M. exasperata, and Parmelia tiliacea and most tolerant are Lecanora alophana, L. intumescens, L. pulicaris, Lecidella elaeochroma and Phaeophyscia orbicularis.