Studies on diversity of lichen, Pyxine cocoes to air pollution in Bhadravathi town, Karnataka, India.

Air pollution induced climate change affecting the pigmentation and diversity of lichen, Pyxine cocoes were monitored around the industrial area and traffic area of Bhadravthi using European guidelines. The obtained data has been discussed and results compared with data from that of Kuvempu University campus (control). From the present study, it was evident that the air pollutants emitted from the two major industries and other small scale industries affected the total chlorophyll (0.16 mg g-1) and carotene pigments (0.11 mg g-1) in Pyxine cocoes, as well as their diversity (approx 13) on two plants (M. indica and P. pinnata) in the vicinity of the industrial area. Further, as a result of vehicular pollution at traffic area resulted in the deterioration of total chlorophyll (0.11 mg g-1), carotene pigments (0.07 mg g-1) and diversity (approx. 17) of Pyxine cocoes compared to control site. The present study has thrown light on lichens sensitivity to the air pollution.