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Evaluation of air pollution tolerance index and anticipated performance index of plants and their role in development of green belt along national highway-22

Plants play an important role in mitigating air pollution. In such a scenario where problems due to air pollution are faced worldwide screening of sensitive and tolerant plants which acts as a bio indicator and sinks for air pollution is extremely significant. Therefore, present study was designed to evaluate the Air Pollution Tolerance Index (APTI) of six roadside plant species namely Cassia fistula, Grevillea robusta, Grewia optiva, Leucaena leucocephela, Toona ciliate and Woodfordia floribunda growing alongside a selected stretch of National Highway 22 (Datiyar to Solan) in Himachal Pradesh, India. The Anticipated Performance Index (API) of these plant species was also calculated by considering their APTI values with biological and socio-economic characters (plant height, canopy structure, type of plant, laminar characteristics, texture, hardiness and economic value). The study indicated that Cassia fistula with highest APTI value of 23.5 and highest API score is best for green belt development. | Evaluation of air pollution tolerance index and anticipated performance index of plants and their role in development of green belt along national highway-22