Comparison of Air Pollution Levels from Ground Monitoring Stations and Satellite Data

Gajalakshmi K.; Anantharama V.

Abstract

Air pollution is mainly due to the release of pollutants into the atmosphere which are detrimental to the planet and human health in particular. Monitoring for the air quality parameters is important because it may lead to the adverse effects on the environment. The quantitative analysis of the air pollution spreads over the Bangalore city is carried out using two different data sources, one from ground monitoring stations and the other from the satellite derived data. Ambient Air Quality data for Bangalore region recorded by Karnataka State Pollution Control Board (KSPCB) for 2018–2020 were analysed in the open source GIS platform. Air quality parameters like aerosol optical depth (AOD), Nitrogen di-oxide (NO2) etc. were collected from Moderate Resolution Imaging Spectro-radiometer (MODIS) and Ozone monitoring instruments for spatial analysis. Data were analysed and compared and found that satellite based data of NO2 from the sensors provide a reliable values in ground-level exposure for a larger urban region.