Spatial-temporal variation of no2 levels and its influencing factors in the state of Libya utilizing sentinel-5p products

Abstract EN

The overall aim of this study is to estimate the spatial-temporal variation of NO2 concentrations and its influencing factors in the State of Libya using the tools offered by sentinel-5P TROPOMI, over the past year (January to December 2021).

the significance of NO2 observation comes since NO2 accumulation in the atmosphere will cause severe air pollution.

in recent decades, the Libyan State has been exposed to huge amounts of NO2 due to rapid economic growth, industrialization, and urbanization.

lately, sentinel-5p observations have become the critical technical means regarding atmospheric observation compared with ground-based measurements.

results have shown that measurements obtained from sentinel-5 precursor were 8.7% more accurate than ground-based measurements.

moreover, the NO2 column concentration was higher in the summer than in winter was as found in global and local Moran's test results, whilst the spatial distribution pattern was higher in coastal areas than inner areas.

the influencing factors have also had a significant and positive impact that led to the high NO2 atmospheric concentrations emphasized by SLM calculations.