We used the Aura satellite to identify how the levels of nitrogen dioxide and other air pollutants fluctuated in the same period as CoVid-19 cases increased. Using the density of COVID-19 cases in the Wuhan region published by Johns Hopkins University, we created an algorithm that proved a correlation between the density of CoVid-19 cases and the levels of nitrogen dioxide and sulfur dioxide. Although we specifically analyze the biomes around Wuhan China, including the Donghu National Park, in the demo our algorithm could just as easily be applied to any other biome or environment effected by CoVid-19 as long as the data is present. With the government restriction imposed on this area, there was a significant decrease in human traffic. We proved how this decrease in human traffic resulted in changes to the air quality in the Wuhan region. Additionally we used our conclusions to help further the understanding of pollutants. We conclude that certain sources of air pollution are more "preventable" than others.
We used the resources available to us on various NASA websites and other resources to accomplish our goals. Our primary resource were different compilations gas concentration averages from satellites such as Aura and Copernicus Two. We choose to use NO2 as our baseline gas because it is almost entirely produced by industry and transport (as opposed to methane); additionally NO2 decomposes into other gasses relatively quickly which allows for more precise results when compared to other pollutants which remain in the atmosphere for longer before decomposing. Upon examining this data, we saw a distinct correlation between the gas levels and the timeline of which Covid-19 occurred. From this data, we were able to create an algorithm that relates the levels of Nitrogen Dioxide and other pollutants to the number of Covid-19 cases derived from Wuhan, China. We used methane (CH4) as our example other pollutant in the demo because we knew that it would have decreased much less (because transport and the burning of fossil fuels does not play as large of a role in its production). We than arrived at an intuitive answer that CH4 is less preventable, this algorithm can be used to find more intricate complications with the global air pollution crisis.
We showcased our project via a google slides presentation that can be found at the following link:
Global Nitrogen Dioxide Monitoring Home Page
New York Times Article using ESA data
Nasa data showing negative correlation
How to Find and Visualize Nitrogen Dioxide Satellite Data:
Global Sulfur Dioxide Monitoring Home Pag
Airborne Nitrogen Dioxide Plummets Over China
NASA Monitors COVID-19 Environmental Signals