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Research Article
Analysis of air quality changes during the COVID-19 in Wuhan city based on Over-standard multiples method and Gray relational analysis
Runqi Chang
Liaoning Technical University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6802-942X
License:
This work is licensed under a CC BY 4.0 License. Read Full License
To study air quality changes during the COVID-19. This paper introduced the Over-standard multiples method and Gray relational analysis to study the individual and overall change trends of pollutants in Wuhan during the same period in the past seven years. The result shows that the concentrations of SO2 and O3 increased but still meet the standard. However, the pandemic promoted a decrease in PM2.5, PM10, and NO2 concentrations, but it had just reached the standard or even exceeded the standard. This article discussed the feasibility of using Gray relational analysis to analyze pollutants exceeding the standard from an overall perspective and provided new ideas for future research.
Keywords
COVID-19, Air quality, Gray relational analysis, Wuhan, Pollutant
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This is a preprint. It has not completed peer review.
Research Article
Analysis of air quality changes during the COVID-19 in Wuhan city based on Over-standard multiples method and Gray relational analysis
Runqi Chang
Liaoning Technical University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6802-942X
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 3
Posted 25 Sep, 2020
No community comments so far
No comments provided
No comments provided
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Atmospheric Sciences
License:
This work is licensed under a CC BY 4.0 License. Read Full License
To study air quality changes during the COVID-19. This paper introduced the Over-standard multiples method and Gray relational analysis to study the individual and overall change trends of pollutants in Wuhan during the same period in the past seven years. The result shows that the concentrations of SO2 and O3 increased but still meet the standard. However, the pandemic promoted a decrease in PM2.5, PM10, and NO2 concentrations, but it had just reached the standard or even exceeded the standard. This article discussed the feasibility of using Gray relational analysis to analyze pollutants exceeding the standard from an overall perspective and provided new ideas for future research.
Figure 1
Figure 2