Air Quality Analysis of Shimla City

Abstract

Now a days increasing air pollution is becoming a huge problem. Its control through its determination and analysis has become necessary in major cities . This project aims at doing a detailed analysis on shimla city pollution and its air pollutants by calculating air quality index and plotting graph with respect to its time details and amount of pollutants released. Shimla is a growing town and attractions of tourism as well as state headquarters , so different vehicles and industrial work are on hike in the past decade. Air quality indices are used for local and regional air quality management in many metro cities of the world. In the present study, air quality indices have been calculated using the US Environmental Protection Agency procedure to assess the status of ambient air quality near busy traffic intersections in shimla, India Meteorological conditions play a crucial role in ambient air pollution by affecting both directly and indirectly the emissions, transport, formation, and deposition of air pollutants. In this paper, the effects of meteorological conditions on local air quality pollutants are quantitatively assessed by determining the relationships between concentrations of sulphur dioxide (SO2) and nitrogen dioxide (NO2), suspended particulate matter (SPM), respirable suspended particulate matter (RSPM) with meteorological parameters such as minimum temperature (Tm), maximum temperature (TM), average temperature (Tavg), precipitation (P) and relative humidity (R.H) on monthly basis. Moreover Shimla also includes ecologically sensitive area, but a little is known about air pollutants and meteorological parameters for ecologically sensitive area. This study includes detailed statistical analysis for both residential and ecologically sensitive area, using the multi-linear regression technique to develop a relationship and predicting the ambient air quality pollutants ( i.e SPM, RSPM, SO2 and NO2 ) in conjunctions with meteorological parameters ( i.e Tm, TM, Tavg, P, R.H ) of the Shimla city