HR: 0800h
AN: A11A-0026    [Abstracts]
TI: EVALUATION OF IMPACTS OF LANDUSE CHANGES ON AIR QUALITY IN HYDERABAD METROPOLIS USING REMOTE SENSING AND GIS - A CASE STUDY FROM INDIAN SUB-CONTINENT
AU: * Vuppala, P
EM: padmaja_vuppala@yahoo.co.in, padmaja_vuppala@rediffmail.com
AF: Padmaja Vuppala, # 15-9-68/1 Maharaj Gunj, Hyderabad, AP 500012 India
AU: S.S, A
EM: sivaasadi@rediffmail.com
AF: S.S.Asadi, Centre for Environment IST, JNT University Kukatpally, Hyderbad, AP 500072 India
AU: Mareddy, A
EM: maredyyanjireddy@rediffmail.com
AF: DR. M. Anji Reddy, Centre for Environment IST, JNT University Kukatpally, Hyderabad, AP 500072 India
AB: Around the world cities in developing countries are rapidly growing as more and more people become urban dwellers resulting in increased level of air pollution caused by changes in transportation, energy production and industrial activities. Air quality is an issue of critical importance in view of the accumulating evidence showing the adverse effects of pollution on human health, agricultural crops, manmade environments and ecosystems. An integrated study for identification of appropriate sites for representative evaluation of air pollution, novel means of monitoring air quality, identifying the predominant sources of pollution, effective assessment of air quality and evaluation of different management strategies essential for the development of a healthy and livable region is carried out for Hyderabad metropolis in India using Remote sensing and Geographical Information System (GIS) based assessment tools. Correlation studies between the concentration level of pollutants in urban air and urban land use are also dealt with. Municipal Corporation of Hyderabad (MCH) is divided into eleven planning zones out of which the present study area i.e. Zone I & IIA comprises of industrial, highly commercial and densely populated areas, apart from medium and sparse residential areas making it environmentally sensitive. Sampling locations were identified based on the land use/ land cover of the region and air samples were collected from areas having varying land use patterns using a high volume air sampler. The samples were then analyzed for the presence of Sulphur oxides(SO--x), Oxides of Nitrogen(NO--x), Total Suspended Particulate Matter(TSPM) and Respirable Suspended Particulate Matter(RSPM) using standard protocols and maps showing spatial distribution of SOx, NO--x, TSPM & RSPM were prepared using curve fitting technique of Arc/Info & ArcView GIS software. Air Quality Index (AQI), indicating the overall quality of air and extent of pollution is also calculated, based on which the entire study area is classified into severely, highly, moderately and lightly polluted areas. Concentration of SOx and NOx were observed to be within limits, while particulate pollutants exceeded the standards prescribed by Central Pollution Control Board (CPCB). The major cause of pollution in the study area is attributed to the increasing vehicular movements and presence of commercial and public related activities such as shopping malls. It is observed for the category of severe air pollution that 42% of pollution is from dense residential areas, 19% from medium residential and 1% load of pollution from other public related activities. Based on the results obtained suitable remedial measures to combat the increasing urban air pollution are suggested in the study area. Key words: Air pollution, Remote sensing, Geographical Information System, Spatial distribution, Air quality index.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0315 Biosphere/atmosphere interactions
DE: 0840 Evaluation and assessment
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting