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Volume: 7, Issue: 3, May-June, 2019
DOI: 10.7324/JABB.2019.70312

Research Article

Comparative evaluation of air pollution tolerance of plants from polluted and non-polluted regions of Bengaluru


BT Manjunath1, Jayaram Reddy2

  Author Affiliations


Abstract

Green vegetation acts as a sink for particulate air pollutants and is considered as ecologically sustainable costeffective strategies to mitigate ill effects of air pollution in industrialized areas and urban environment. In this context, assessment of air pollution tolerance index (APTI) offers simple tool for screening and identifying plants that tolerate air pollution. Six plants commonly growing in the polluted regions of Bengaluru were selected for assessing the air pollution tolerance response. APTI indices of Ocimum sanctum, Ricinus communis, Leucas aspera, Lantana camara, Bougainvillea spectabilis, and Vinca rosea were assessed and compared with the plants grown in non-polluted sites of Bengaluru to analyze the response to air pollution. APTI correlations with the biochemical and physicochemical parameters were analyzed to identify the important determinants of air pollution tolerance. Among the parameters assessed ascorbic acid content correlated with APTI scores of plants (R2 0.88). Among the plants evaluated, high APTI of >23 was recorded in B. spectabilis and V. rosea, indicating that these plants are tolerant to air pollutants at the collected sites. O. sanctum recorded lowest APTI of 8.77–9.42, indicating that these plants are sensitive to air pollutants and can be used for biomonitoring the air pollution. L. aspera, V. rosea, and B. spectabilis with APTI score of >16 can be used as green belt in polluted areas.

Keywords:

Chlorophyll, Relative Water Content, Air Pollution Tolerance Index.



Citation: Manjunath BT, Reddy J. Comparative evaluation of air pollution tolerance of plants from polluted and non-polluted regions of Bengaluru. J App Biol Biotech. 2019;7(03):63-68. DOI: 10.7324/JABB.2019.70312


Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

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