Air quality changes in cities during the COVID-19 lockdown: A critical review

MG Adam, PTM Tran, R Balasubramanian - Atmospheric Research, 2021 - Elsevier
In response to the rapid spread of coronavirus disease-2019 (COVID-19) within and across
countries and the need to protect public health, governments worldwide introduced …

The global impacts of COVID-19 lockdowns on urban air pollution: A critical review and recommendations

GI Gkatzelis, JB Gilman, SS Brown, H Eskes… - Elem Sci …, 2021 - online.ucpress.edu
The coronavirus-19 (COVID-19) pandemic led to government interventions to limit the
spread of the disease which are unprecedented in recent history; for example, stay at home …

Abrupt but smaller than expected changes in surface air quality attributable to COVID-19 lockdowns

Z Shi, C Song, B Liu, G Lu, J Xu, T Van Vu… - Science …, 2021 - science.org
The COVID-19 lockdowns led to major reductions in air pollutant emissions. Here, we
quantitatively evaluate changes in ambient NO2, O3, and PM2. 5 concentrations arising from …

Revealing drivers of haze pollution by explainable machine learning

L Hou, Q Dai, C Song, B Liu, F Guo, T Dai… - … & Technology Letters, 2022 - ACS Publications
Many places on earth still suffer from a high level of atmospheric fine particulate matter
(PM2. 5) pollution. Formation of a particulate pollution event or haze episode (HE) involves …

A chemical cocktail during the COVID-19 outbreak in Beijing, China: Insights from six-year aerosol particle composition measurements during the Chinese New Year …

Y Sun, L Lei, W Zhou, C Chen, Y He, J Sun, Z Li… - Science of the Total …, 2020 - Elsevier
The rapidly spread coronavirus disease (COVID-19) has limited people's outdoor activities
and hence caused substantial reductions in anthropogenic emissions around the world …

Increasing contribution of nighttime nitrogen chemistry to wintertime haze formation in Beijing observed during COVID-19 lockdowns

C Yan, YJ Tham, W Nie, M Xia, H Wang, Y Guo… - Nature …, 2023 - nature.com
Nitrate comprises the largest fraction of fine particulate matter in China during severe haze.
Consequently, strict control of nitrogen oxides (NO x) emissions has been regarded as an …

Driving forces of changes in air quality during the COVID-19 lockdown period in the Yangtze River Delta region, China

T Liu, X Wang, J Hu, Q Wang, J An… - … & Technology Letters, 2020 - ACS Publications
During the COVID-19 lockdown period (from January 23 to February 29, 2020), ambient
PM2. 5 concentrations in the Yangtze River Delta (YRD) region were observed to be much …

Effects of COVID-19 lockdowns on fine particulate matter concentrations

MS Hammer, A Van Donkelaar, RV Martin… - Science …, 2021 - science.org
Lockdowns during the COVID-19 pandemic provide an unprecedented opportunity to
examine the effects of human activity on air quality. The effects on fine particulate matter …

[HTML][HTML] Opportunistic experiments to constrain aerosol effective radiative forcing

M Christensen, A Gettelman, J Cermak… - Atmospheric …, 2021 - acp.copernicus.org
Aerosol-cloud interactions (ACI) are considered to be the most uncertain driver of present-
day radiative forcing due to human activities. The non-linearity of cloud-state changes to …

Air pollution episodes during the COVID-19 outbreak in the Beijing–Tianjin–Hebei region of China: an insight into the transport pathways and source distribution

N Zhao, G Wang, G Li, J Lang, H Zhang - Environmental Pollution, 2020 - Elsevier
Although anthropogenic emissions decreased, polluted days still occurred in the Beijing–
Tianjin–Hebei (BTH) region during the initial outbreak of the coronavirus disease (COVID …