International network for natural sciences – research journal
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Assessment of air pollution sensitivity of some selected tree species of busiest roads of Lahore city

By: Sohaib Muhammad, Fara Shakeel, Zaheer-ud-din Khan, Muhammad Hasnain, Tanzeem Akbar Cheema

Key Words: Relative leaf water content, Relative pH, Ascorbic acid content, Total leaf chlorophyll content, Air pollution tolerance index (APTI).

J. Bio. Env. Sci. 9(2), 99-105, August 2016.

Abstract

The research includes Air Pollution Tolerance Index (APTI) of commonly occurring tree of Mall road and Jail road of Lahore, Pakistan. In order to find out APTI, four species were selected i.e. Alstonia scholaris (L.) R.Br., Callistemon citrinus (Curtis) Skeels, Ficus religiosa L. and Morus alba L. The experiment was carried out by taking four aspects viz. pH, ascorbic acid, total chlorophyll and leaf water content (%) of leaf samples of these tree species. It was found that the Ficus religiosa was the most tolerant having APTI value 9.09, while Callistemon citrinus showed lowest value of 7.86 which indicated that it was most sensitive to air pollution.

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