ASSESSMENT OF AMBIENT AIR QUALITY AT GREATER NOIDA

Abstract

The project investigates the concentration of the pollutants sulphur dioxide, nitrogen oxides, particulate matter (PM,0) and (PM2,5) generated from various sources like automobiles, industries over the ambient air quality of GREATER NOIDA, Surajpur industrial area. As such Greater Noida is a big industrial hub and it is not possible to measure the concentration of these major pollutants in all areas, so we have restricted our study to one particular site. The major pollutants as suggested by the Central pollution control board (CPCB) in an industrial area are sulphurdioxide, oxides of nitrogen (N0x) , particulate matter (PM,0) and (PM25) .The rate of emission and concentration of these gases in the ambient air is studied by the following laboratory methods — (a) Modified West and Gaeke method for determination of sulphur dioxide in ambient air, (b) Modified Jacob and Hochheiser method for determination of nitrogen oxides in ambient air, (c) Cyclonic flow technique for the measurement of PMio, (d) federal reference method for the determination PM25 The results will show the concentration of emissions of the above cited gaseous and suspended solid pollutants and will be compared with the permissible concentrations as per the standards given by CPCB for an industrial area and major precautions can be taken to reduce the concentration level of these pollutants.