Impacts of Certain Meteorological Factors on Atmospheric NO2 Concentrations during COVID-19 Lockdown in 2020 in Wuhan, China
Abstract
:1. Introduction
2. Data and Methods
2.1. NO2 Data Obtained from Ozone Monitoring Instrument (OMI)
2.2. NO2 Data Obtained from Ground Monitoring Stations
2.3. Meteorological Data
2.4. The RFR Model
2.5. Model Verification
3. Results and Discussion
3.1. Mean Annual Distribution of the Tropospheric NO2 Column Concentrations during 2012~2020
3.2. Changes in Tropospheric and Ground NO2 Column Concentrations during Lockdown
3.3. Impact of Natural Factors on Ground and Tropospheric NO2 Concentrations
3.3.1. Wind Velocity
3.3.2. Temperature
3.3.3. Lifted Index
3.3.4. Precipitable Water Volume
3.3.5. Relative Humidity
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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1325 A | 1326 A | 1327 A | 1328 A | 1329 A | 1330 A | 1331 A | 1333 A | 1334 A | ||
---|---|---|---|---|---|---|---|---|---|---|
2019 | mean | 35.66 | 50.96 | 48.35 | 54.77 | 48.31 | 42.99 | 52.34 | 49.23 | 24.64 |
Std | 11.01 | 26.32 | 23.71 | 30.13 | 23.67 | 18.35 | 27.69 | 24.59 | 11.46 | |
Before | mean | 45.87 | 59.13 | 58.42 | 60.44 | 56.85 | 56.7 | 52.3 | 54.9 | 30.79 |
Std | 15.08 | 28.34 | 27.63 | 29.65 | 26.06 | 25.92 | 21.51 | 24.11 | 14.97 | |
2020 | mean | 19.34 | 19.94 | 26.17 | 24.59 | 24.81 | 24.18 | 24.02 | 19.88 | 10.74 |
Std | 8.6 | 9.19 | 15.42 | 13.85 | 14.06 | 13.43 | 13.28 | 9.14 | 5.87 | |
After | mean | 23.64 | 32.82 | 29.03 | 34.99 | 35.90 | 37.11 | 43.95 | 27.21 | 14.35 |
Std | 8.98 | 12.30 | 9.85 | 12.13 | 13.37 | 12.99 | 17.17 | 11.70 | 7.15 |
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Ju, T.; Geng, T.; Li, B.; An, B.; Huang, R.; Fan, J.; Liang, Z.; Duan, J. Impacts of Certain Meteorological Factors on Atmospheric NO2 Concentrations during COVID-19 Lockdown in 2020 in Wuhan, China. Sustainability 2022, 14, 16720. https://doi.org/10.3390/su142416720
Ju T, Geng T, Li B, An B, Huang R, Fan J, Liang Z, Duan J. Impacts of Certain Meteorological Factors on Atmospheric NO2 Concentrations during COVID-19 Lockdown in 2020 in Wuhan, China. Sustainability. 2022; 14(24):16720. https://doi.org/10.3390/su142416720
Chicago/Turabian StyleJu, Tianzhen, Tunyang Geng, Bingnan Li, Bin An, Ruirui Huang, Jiachen Fan, Zhuohong Liang, and Jiale Duan. 2022. "Impacts of Certain Meteorological Factors on Atmospheric NO2 Concentrations during COVID-19 Lockdown in 2020 in Wuhan, China" Sustainability 14, no. 24: 16720. https://doi.org/10.3390/su142416720