PM10, PM2.5, SO2 AND NO2 concentrations at different locations in East-Godavari District, Andhra Pradesh, India

Air pollution is one of the most persistent environmental issues in local and global scale and its increasing day by day due to population growth, urbanization and industrialization. Present study, aim to determine the air quality of particularly four parameters like PM2.5, PM10, sulphur dioxide (SO2) and Nitrogen Dioxide (NO2) at three different locations in Visakhapatnam city and analysis done during three monsoon period in covering two calendar years of 2018 and 2019. In the present study, maximum concentrations were recorded during winter seasons when compared to rainy and winter while the minimum concentrations were recorded at during winter seasons and decreasing in the rainy season and gradually increasing during winter to summer when compared to 2019 and 2020. Sulphur dioxide (SO2) and Nitrogen Dioxide (NO2) concentration below the permissible limits in all the sampling locations as well as during all the seasons except PM2.5 and PM10. Present study reveals that in terms particulate matter, the air quality is very poor when compared gaseous pollutants.