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

Abstract

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.

Response of ornamental plants, study sites and their interaction to various pollutants in respect of secondary metabolites, enzymes and proline content

“…In all four study sites, same ornamental plant species were selected uniformly and tagged randomly as per replication and details of plant species selected are given below. To assess the impact of air, vehicular pollution and dust particles from road sides and from control site were collected from fully matured leaves during morning hours [2] . The leaf samples were collected in polythene covers and were carried to the laboratory for analysis in the ice box.…”

Assessment of air pollution tolerance index (APTI) and anticipated performance index (API) of selected roadside plant species for the green belt development at Ratnagiri City in the Konkan region of Maharashtra, India

“…Plants play an important role in reducing air pollution as they absorb pollutants in the atmosphere and also, they are good receptors to all types of air pollutants (Sahu et al, 2020;Govindaraju et al, 2012;Malav et al, 2022;Rai & Panda, 2014;Prajapati & Tripathi, 2008). Plants can be used as a bio-indicator for monitoring the local air quality (Akilan & Nandhakumar, 2016). Tolerant plant species may useful as a sink for air pollutants and sensitive plant species as a bio-indicator (Vyankatesh & Bhosale, 2014;Panigrahi et al, 2012).…”