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Importance of hedges in improving urban air quality

Landscape and Urban Planning, Volume 25, Issues 1–2, Pages 85-93,

Abstract

Roadside hedges planted primarily for aesthetic purposes attenuate noise, improve the micro-climate and effectively reduce particulate pollution. The particulate abatement capacity (PAC) of three commonly grown hedge species, Bougainvillea spectabilis Willd., Durantaplumieri Jacq. and Nerium indicum Mill. was assessed with the help of dustfall sampling jars and by exposing plastic films. The PAC of the three hedge species was in the order D. plumieri > B. spectabilis > N. indicum. Certain hedge characteristics, particularly density of plant canopy and leaf morphological features, appear to influence the PAC. Based on the data generated during this study, a formula has been devised to provide a quick and easy method for a comparative evaluation of the PAC of hedge species.

Author(s): Varshney, CK, Mitra, I

Journal: Landscape and Urban Planning, Volume 25, Issues 1–2, Pages 85-93,

Year: 1993

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