Abstract
We used a combination of daily aerosol optical depth (AOD) data from the
Moderate Resolution Imaging Spectro-radiometer (MODIS) and ground
measurements using a Dylos air quality monitor (a laser particle
counter) to estimate particle matter air quality over a number of
locations throughout the country of Qatar, in the Middle East. An
empirical relationship between AOD and PM air quality was obtained from
these datasets (linear correlation coefficient of 0.78) and was used to
evaluate annual and seasonal trends in air pollution in Qatar since
2012.