Significant changes in the chemical compositions and sources of PM2. 5 in Wuhan since the city lockdown as COVID-19
Wuhan was the first city to adopt the lockdown measures to prevent COVID-19 spreading,
which improved the air quality accordingly. This study investigated the variations in chemical …
which improved the air quality accordingly. This study investigated the variations in chemical …
Decline in PM2. 5 concentrations over major cities around the world associated with COVID-19
The COVID-19 started from Wuhan city in China, slowly spread across the globe after
December 2019. Due to movement of people from one city to other cities, one country to …
December 2019. Due to movement of people from one city to other cities, one country to …
[HTML][HTML] Impact of quarantine measures on chemical compositions of PM2. 5 during the COVID-19 epidemic in Shanghai, China
The COVID-19 epidemic broke out in Wuhan, Hubei in December 2019 and in January 2020
and was later transmitted to the entire country. Quarantine measures during Chinese New …
and was later transmitted to the entire country. Quarantine measures during Chinese New …
Air pollutant variations in Suzhou during the 2019 novel coronavirus (COVID-19) lockdown of 2020: High time-resolution measurements of aerosol chemical …
H Wang, Q Miao, L Shen, Q Yang, Y Wu, H Wei - Environmental Pollution, 2021 - Elsevier
To control the spread of the 2019 novel coronavirus (COVID-19), China imposed rigorous
restrictions, which resulted in great reductions in pollutant emissions. This study examines …
restrictions, which resulted in great reductions in pollutant emissions. This study examines …
Levels and sources of hourly PM2. 5-related elements during the control period of the COVID-19 pandemic at a rural site between Beijing and Tianjin
Y Cui, D Ji, W Maenhaut, W Gao, R Zhang… - Science of the Total …, 2020 - Elsevier
To control the spread of the novel coronavirus disease 2019 (COVID-19) in China, many
anthropogenic activities were reduced and even closed on the national scale. To study the …
anthropogenic activities were reduced and even closed on the national scale. To study the …
COVID‐19 impact on the concentration and composition of submicron particulate matter in a typical city of Northwest China
In this study, we evaluated the variations of air quality in Lanzhou, a typical city in
Northwestern China impacted by the COVID‐19 lockdown. The mass concentration and …
Northwestern China impacted by the COVID‐19 lockdown. The mass concentration and …
Changes of chemical composition and source apportionment of PM2. 5 during 2013–2017 in urban Handan, China
L Zhao, L Wang, J Tan, J Duan, X Ma, C Zhang… - Atmospheric …, 2019 - Elsevier
Abstract China implemented the National Air Pollution Prevention and Control Action Plan
since 2013, aiming at significantly improving air quality in major areas and cities in 2017. To …
since 2013, aiming at significantly improving air quality in major areas and cities in 2017. To …
Exploring spatiotemporal patterns of PM2. 5 in China based on ground-level observations for 190 cities
H Zhang, Z Wang, W Zhang - Environmental Pollution, 2016 - Elsevier
Whereas air pollution in many Chinese cities has reached epidemic levels in recent years,
limited research has explored the spatial and temporal patterns of fine air particles such as …
limited research has explored the spatial and temporal patterns of fine air particles such as …
Characteristics of PM2. 5 pollution in Beijing after the improvement of air quality
X Huang, G Tang, J Zhang, B Liu, C Liu, J Zhang… - Journal of environmental …, 2021 - Elsevier
Following the implementation of the strictest clean air policies to date in Beijing, the
physicochemical characteristics and sources of PM 2.5 have changed over the past few …
physicochemical characteristics and sources of PM 2.5 have changed over the past few …
Severe air pollution events not avoided by reduced anthropogenic activities during COVID-19 outbreak
Due to the pandemic of coronavirus disease 2019 in China, almost all avoidable activities in
China are prohibited since Wuhan announced lockdown on January 23, 2020. With reduced …
China are prohibited since Wuhan announced lockdown on January 23, 2020. With reduced …