Air pollution tolerance index of selected plants in industrial and urban areas of Vellore district

DOI: 10.18805/asd.v35i1.9315    | Article Id: D-4339 | Page : 66-68
Citation :- Air pollution tolerance index of selected plants in industrialand urban areas of Vellore district .Agricultural Science Digest.2016.(36):66-68

M. Akilan* and S. Nandhakumar 

Address :

Adhiparasakthi Agricultural College, Kalavai-632 506, Vellore, India.

Submitted Date : 4-12-2015
Accepted Date : 27-02-2016


The impact of air pollutants on the biochemical characters of the selected plant species from industrial and urban areas was studied  by calculating ascorbic acid, total chlorophyll, leaf extract pH and  relative water content from  leaf tissues. The air pollution tolerance index (APTI) values of the selected plants of  different study areas revealed that the APTI values of the plants at the College Farm recorded low  compared to Arcot and Ranipet  transporation and industrial areas. Among the selected plant species, higher APTI values were recorded from the industrial and urban areas. when compared to areas free from industries and transport. The four selected plant species viz. Neerium oleander, Tamarindus indicus, Azardirecta indica and Pungamia pinnata, Neerium oleander recorded higher APTI values from the industrial and transportation that revealed more tolerance than the other selected plants.The statistical results  revealed that Arcot was more polluted compared to Ranipet, and the college farm  recorded least polluted due to less exposure to industries, transport and urbanization.


Air pollution tolerance index APTI Ascorbic acid Bio-indicators Total chlorophyll.


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