Spatial and Temporal Variations of S0_2, NO_x, PM_(10) and TSPM Concentration in Ambient Air of Jalna City, India

摘要

The ambient air quality monitoring data of Jalna City, India for S02, NOx, PM10 and TSPM at two sites (residential and industrial) and over a one year period are presented within this paper. The diurnal and seasonal variation in concentrations of S02,NO , PM|0 and TSPM has been analyzed. It has been observed that all pollutants showed higher concentration during daytime as compared to night. The seasonal cycle at both the sites generally showed for S0_2, PM_(10) and TSPM higher concentrations duringthe winter season. At both the sites no distinct seasonal cycle could be detected for NO_x. The annual mean concentrations recorded for S0_2, NO_x, PM_(10) and TSPM were 4.93|ig/m~3, 26.68ug/m~3, 61.85ug/m~3 and 166.11ug/m~3 at residential site and 6.44ug/m~3, 64.64pg/m~3, 126.82ug/m~3 and 306.27ug/m~3 at industrial site. The annual mean concentrations of all four pollutants measured at residential site were found within the permissible limits of Indian National Ambient Air Quality Standards (NAAQS) whereas annual PM_(10) concentration at residential and industrial site violated the prescribed standard.