Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption
Abstract The stringent control measures in China to curb the spread of Coronavirus disease (COVID-19) have had profound societal and environmental impacts, including changes in energy consumption practices and thereby in air pollutant emissions. In this study, a suite of satellite and numerically as...
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| Format: | Article |
| Language: | English |
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Springer
2021-07-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.200668 |
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| author | Pradeep Khatri Tadahiro Hayasaka |
| author_facet | Pradeep Khatri Tadahiro Hayasaka |
| author_sort | Pradeep Khatri |
| collection | DOAJ |
| description | Abstract The stringent control measures in China to curb the spread of Coronavirus disease (COVID-19) have had profound societal and environmental impacts, including changes in energy consumption practices and thereby in air pollutant emissions. In this study, a suite of satellite and numerically assimilated air pollution and meteorological data combined with information on energy consumption practices and nighttime light (NTL) was used to evaluate the effects of these COVID-19 control measures on air quality. These data revealed that control measures reduced aerosols mostly over central and eastern parts of China by countering favorable meteorological conditions for increased aerosols. The control measures reduced short-lived nitrogen dioxide (NO2) with little influence on long-lived carbon monoxide (CO). Consistent with energy production and energy consumption statistics in different sectors, NTL data suggest that high human mobility within the residential sector and reduced activity in other sectors during the implementation of control measures explain small but significant decreases in black carbon and sulfate aerosols, respectively, during this period. Overall, these results provide useful information for policy makers and the scientific community by clarifying the contributions of meteorological factors and energy consumption to changes in air quality. This information can guide the development of air pollution mitigation strategies and provides insight into the air pollution status in China and the potential for longdistance transport. |
| format | Article |
| id | doaj-art-31f99258fab7418c9fc609bf89034a12 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-31f99258fab7418c9fc609bf89034a122025-02-09T12:21:11ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-07-01211011810.4209/aaqr.200668Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy ConsumptionPradeep Khatri0Tadahiro Hayasaka1Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku UniversityCenter for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku UniversityAbstract The stringent control measures in China to curb the spread of Coronavirus disease (COVID-19) have had profound societal and environmental impacts, including changes in energy consumption practices and thereby in air pollutant emissions. In this study, a suite of satellite and numerically assimilated air pollution and meteorological data combined with information on energy consumption practices and nighttime light (NTL) was used to evaluate the effects of these COVID-19 control measures on air quality. These data revealed that control measures reduced aerosols mostly over central and eastern parts of China by countering favorable meteorological conditions for increased aerosols. The control measures reduced short-lived nitrogen dioxide (NO2) with little influence on long-lived carbon monoxide (CO). Consistent with energy production and energy consumption statistics in different sectors, NTL data suggest that high human mobility within the residential sector and reduced activity in other sectors during the implementation of control measures explain small but significant decreases in black carbon and sulfate aerosols, respectively, during this period. Overall, these results provide useful information for policy makers and the scientific community by clarifying the contributions of meteorological factors and energy consumption to changes in air quality. This information can guide the development of air pollution mitigation strategies and provides insight into the air pollution status in China and the potential for longdistance transport.https://doi.org/10.4209/aaqr.200668COVID-19Air qualityEnergy consumptionNighttime light |
| spellingShingle | Pradeep Khatri Tadahiro Hayasaka Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption Aerosol and Air Quality Research COVID-19 Air quality Energy consumption Nighttime light |
| title | Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption |
| title_full | Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption |
| title_fullStr | Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption |
| title_full_unstemmed | Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption |
| title_short | Impacts of COVID-19 on Air Quality over China: Links with Meteorological Factors and Energy Consumption |
| title_sort | impacts of covid 19 on air quality over china links with meteorological factors and energy consumption |
| topic | COVID-19 Air quality Energy consumption Nighttime light |
| url | https://doi.org/10.4209/aaqr.200668 |
| work_keys_str_mv | AT pradeepkhatri impactsofcovid19onairqualityoverchinalinkswithmeteorologicalfactorsandenergyconsumption AT tadahirohayasaka impactsofcovid19onairqualityoverchinalinkswithmeteorologicalfactorsandenergyconsumption |