Substantial Changes of Gaseous Pollutants and Health Effects During the COVID-19 Lockdown Period Across China

Autor: Yongfei Li, Chaohao Ling
Rok vydání: 2021
Předmět:
Epidemiology
Health
Toxicology and Mutagenesis
Pollution: Urban
Regional and Global
Air pollution
Atmospheric Composition and Structure
medicine.disease_cause
Biogeosciences
NO2
Environmental protection
Toxicology
Oceanography: Biological and Chemical
Waste Management and Disposal
Water Science and Technology
media_common
Global and Planetary Change
COPD
Marine Pollution
Geohealth
Pollution
History of Geophysics
Oceanography: General
health effect
Pollution: Urban and Regional
Human Impact
The COVID‐19 pandemic: linking health
society and environment
Space Weather
Research Article
Coronavirus disease 2019 (COVID-19)
Vector Born Diseases
media_common.quotation_subject
Megacities and Urban Environment
Management
Monitoring
Policy and Law
Atmospheric Sciences
Paleoceanography
COVID‐19
TD169-171.8
medicine
Human Impacts
Air quality index
Urban Systems
Pollutant
Aerosols
Impacts on Humans
Public Health
Environmental and Occupational Health
Outbreak
Aerosols and Particles
medicine.disease
Health effect
Environmental science
Hydrology
Natural Hazards
random forest
Zdroj: GeoHealth
GeoHealth, Vol 5, Iss 5, Pp n/a-n/a (2021)
ISSN: 2471-1403
Popis: The human movement and economic activities have been drastically reduced due to the Coronavirus Disease 2019 (COVID‐19) outbreak, leading to the sharp decreases of pollutant emissions and remarkable air quality improvement. Nevertheless, however, the changes of gaseous pollutant concentrations and health effects across China during the COVID‐19 lockdown period remained poorly understood. Here, a random forest model was applied to assess the impact of COVID‐19 lockdown on pollutant concentrations and potential health effects. The results suggested that estimated NO2, SO2, and CO concentrations in China during January 23–March 31, 2020 decreased by 13.68%, 25.71%, and 7.42%, respectively compared with the same periods in 2018–2019. Nonetheless, the predicted 8‐h O3 concentrations across China suffered from 1.29% increases during this period. The avoided premature all‐cause, cardiovascular disease (CVD), respiratory disease (RD), and chronic obstructive pulmonary disease (COPD) mortalities induced by NO2 decrease during COVID‐19 lockdown period reached 3,954 (3,076–4,832), 635 (468–801), 612 (459–765), and 920 (653–1,186) cases. However, the increases of all‐cause, CVD, RD, and COPD mortalities due to O3 increase during COVID‐19 lockdown period achieved 462 (250–674), 79 (29–129), 40 (−25–105), and 52 (−34–138) cases. The natural experiment demonstrated the drastic emission reduction measures could significantly decrease the NO2, SO2, and CO concentrations, while they significantly elevated the O3 concentration. It is highly imperative to propose more coordinated air pollution control strategies to control O3 pollution.
Key Points The impacts of Coronavirus Disease 2019 lockdown on gaseous pollutants across China were investigatedThe 8‐h O3 level displayed slight increase, while other pollutants showed dramatic decreasesCOVID‐19 saved 3,954 lives due to NO2 decrease, but it claimed 462 lives linked with O3 increase
Databáze: OpenAIRE
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