Keywords
SO2
TROPOMI
Sentinel-5P NO2
SO2
TROPOMI
Sentinel-5P
Working Languages
How to Cite
Abstract
Nitrogen dioxide (NO2) and sulfur dioxide (SO2) are the main gases causing air pollution in many urban areas and large industrial zones in Vietnam. Therefore, it is necessary to monitor the concentration of NO2, and SO2 regularly on a large scale; which will help the decision-makers to find a sustainable solution for air quality management and improve people's health. In this study, we used data from the dedicated remote sensing satellite Sentinel-5P of the European Space Agency (ESA) to extract the concentrations of NO2 and SO2 in the air of the Hanoi area in 2021.
The validation approach of satellite data, based on cross-correlation analysis with independent data from in-situs, has shown that the correlation coefficient (R2) for NO2 is approximately 0.7, and for SO2 it is 0.78; which that the accuracy of calculating NO2 and SO2 content from Sentinel-5P data is quite good. The results also show that, in 2021, the NO2 and SO2 values in the air of Hanoi are relatively high