Evaluating the Tolerance and Dust Capturing Capacity of Tree Species Affected by Coal Dust Polluted Area
2024
Kamesh, Brijendra Pratap Singh, Shailly Misra and Ramesh
The air pollution tolerance index (APTI) of any plant shows the tolerance capacity of plant against the air pollution. The present study exhibited the APTI and API of twenty-two trees present on the roadside coal dust-affected air pollution area of Chhal, Raigarh. APTI consists of the analysis of leaf extract pH, relative water content, total chlorophyll content, and ascorbic acid of leaves while the API consists of the APTI values of trees, morphological characteristics, and socio-economic attributes of trees. The leaf extract pH was observed to range from 6.61±0.11 - 3.28±0.11, relative water content from 95.4±0.4 - 83±0.89 %, total chlorophyll content from 1.16±0.06 - 0.385±0.04 mg g-1 and ascorbic acid from 30.54±0.67 - 10.61±0.84 mg g-1. The highest APTI was 30.88±0.75 for Tectona grandis while the lowest was observed 15.58±0.54 for Alstonia scholaris. The highest API value 93.75% for Shorea robusta and Ficus religiosa was observed. The maximum dust held by a tree on the leaf surface by Shorea robusta (3.18±0.09 mg cm-2) was recorded. Shorea robusta, Mangifera indica, Schleichera oleosa, Terminalia ballerica, Ficus benghalensis, Anthocephalus cadamba, Ficus religiosa, Peltophorum pterocarpum, Madhuca indica, and Terminalia tomentosa are best performers among the selected tree species and suitable for the plantation of trees surrounding of air polluted zones.
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