Sources of Air Pollution and Ambient Air Quality Status of Kuarmunda-Biramitrapur Area, Sundargarh District, Odisha

摘要

Sundargarh district of Odisha produces around 6625 tonne per day (TPD) of sponge iron from 46 sponge iron plants. Kuarmunda-Biramitrapur area has 12 numbers of sponge iron plants. The sponge iron plants of the study area emit lots of black smoke, dust and other gaseous matters. Movement of trucks carrying raw materials is high so, houses in adjoining colonies, villages, forest and agricultural fields are loaded with fine black dust. The air pollution is most significant in the area. The most significant air pollutants are total suspended particulate matters (TSPM), sulphur dioxide(SO_2),oxides of nitrogen (NO_x) and carbon dioxide (CO_2). The average value of TSPM at monitoring stations remained above the prescribed standard. However, the resprirable suspended particulate matters (RSPM) remain within the prescribed limit excepting Chhadriharipur region. The concentration of SO_2 and NO_x are within the limit at the monitoring stations. Now after adoption of pollution control measures, it is in decreasing trend. It has been observed that with installation of electrostatic precipitator (ESP), the concentration of TSPM has substantially reduced by more than 80% - 90% .which indicates the usefulness of ESP in sponge iron plants.