Abstract: Air pollution has own peculiarities due to its transboundary dispersion of pollutants over the entire world. In any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. In the present study, Air pollution tolerance index was calculated for various plant species growing at Government Arts College, Chennai, India. The results showed significant effects of various air pollutants on the vegetation in terms of four biochemical parameters analyzed. Four biochemical parameters, which are leaf relative water content, Ascorbic acid content, total leaf chlorophyll content and leaf extract pH were used to compute the air pollution tolerance index values. On the basis of air pollution tolerance index values for above mentioned four tree species, Polyalthia longifolia exhibited the highest degree of tolerance at all the sites followed by Peltophorum pterocarpum, Guazuma ulmifolia and Morinda tinctoria.
Keywords: Air pollution tolerance index (APTI), Ascorbic acid content (AAC), Leaf extract pH, Relative water content (RWC), Total leaf chlorophyll content (TLC).
Title: Air Pollution Tolerance Index of Some Terrestrial Plant Species of Government Arts College (Nandanam) Chennai
Author: S. Malathy, K.Manoj Dhanraj, Mujeera Fathima, Utthukkattan
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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