AIR POLLUTION TOLERANCE INDEX OF SOME TREE SPECIES AROUND ELECTRICITY GENERATING HOUSES IN AHMADU BELLO UNIVERSITY MAIN CAMPUS, ZARIA, NIGERIA
The study examined the Air Pollution Tolerance Index (APTI) of seven different tree species growing around electricity generating houses within the Ahmadu Bello University (ABU) Main campus, Samaru. Four parameters, leaf relative water content (RWC), ascorbic acid content (AA), total chlorophyll (TCH) and pH of leaf extract were used to compute the APTI of the tree species. Results indi...