OVERVIEW ON ATTENUATION OF INDUSTRIAL AIR POLLUTION BY GREENBELT
Urban air pollution due to industrial emission and vehicular emission due to automobiles has aggravated the problem of environmental pollution. Plants are known to act as sink for air pollutants. Planting of trees and shrubs in the form of greenbelt around the industry is an effective way for abatement of pollution and improvement of environment and is well recognized throughout the world. This article provides a brief review of the history and evolution of work on greenbelt development for pollution attenuation in an industry. It also reviews work on different aspects of greenbelt design and selection of plant species, which can be grown around industrial/urban areas in India. A reported case study carried out at petroleum refinery is discussed. At this plant, green belt of 500m width was found to be 36-40% efficient in removal of SO2, NOx & SPM and 84-94% efficient in removal of THC, VOC & CO. The future line of work is suggested for collecting data on the potential of greenbelts in attenuating the pollutants.
RAKHI B. GUPTA, P.R. CHAUDHARI AND S.R. WATE
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