The Association of Satellite Data with PM2.5 Data from Ground Monitoring Stations in Thailand

This study addresses the combination of satellite and ground particulate matter with a diameter less than 2.5 microns (PM
2.5
) in Thailand. Thailand's Pollution Control Department (PCD) and Bangkok's Air Quality and Noise Management Division gathered PM
2.5
data between 2011 and 2020. NASA's Earth Observing System Data and Information System (EOSDIS) retrieves all MODIS satellite data. According to this study, Aerosol Optical Depth (AOD), Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), and Elevation (EV) may be employed as PM
2.5
predictors from ground monitoring sites in Thailand. The model showed better performance when including time (Week of year (WOY), Year), indicating seasonal fluctuations in PM
2.5
. The generated model uses Spearman's correlation and stepwise regression model. This research determined which satellite data is appropriate for estimating PM
2.5
in Thailand.