{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Wu L"],"funding":["National Natural Science Foundation of China"],"pagination":["23"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9510312"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["2(1)"],"pubmed_abstract":["In 2020, lockdown control measures were implemented to prevent a novel coronavirus disease 19 (COVID-19) pandemic in many places of the world, which largely reduced human activities. Here, we detect changes in weekly cycles of PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub>, CO and O<sub>3</sub> concentrations in 2020 compared to 2018 and 2019 using the observed data at 32 stations in Beijing. Distinct weekly cycles of annual average PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub> and CO concentrations existed in 2018, while the weekend effects changed in 2020. In addition, the weekly cycle magnitudes of PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub>, and O<sub>3</sub> concentrations in 2020 decreased by 29.60-69.26% compared to 2018, and 4.49-47.21% compared to 2019. We propose that the changing weekend effects and diminishing weekly cycle magnitudes may be tied to the COVID-19 lockdown controls, which changed human working and lifestyle cycles and reduced anthropogenic emissions of air pollutants on weekends more than weekdays."],"journal":["npj urban sustainability"],"pubmed_title":["Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls."],"pmcid":["PMC9510312"],"funding_grant_id":["41675085"],"pubmed_authors":["Wu L","Xie J","Kang K"],"additional_accession":[]},"is_claimable":false,"name":"Changing weekend effects of air pollutants in Beijing under 2020 COVID-19 lockdown controls.","description":"In 2020, lockdown control measures were implemented to prevent a novel coronavirus disease 19 (COVID-19) pandemic in many places of the world, which largely reduced human activities. Here, we detect changes in weekly cycles of PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub>, CO and O<sub>3</sub> concentrations in 2020 compared to 2018 and 2019 using the observed data at 32 stations in Beijing. Distinct weekly cycles of annual average PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub> and CO concentrations existed in 2018, while the weekend effects changed in 2020. In addition, the weekly cycle magnitudes of PM<sub>2.5</sub>, NO<sub>2</sub>, SO<sub>2</sub>, and O<sub>3</sub> concentrations in 2020 decreased by 29.60-69.26% compared to 2018, and 4.49-47.21% compared to 2019. We propose that the changing weekend effects and diminishing weekly cycle magnitudes may be tied to the COVID-19 lockdown controls, which changed human working and lifestyle cycles and reduced anthropogenic emissions of air pollutants on weekends more than weekdays.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022","modification":"2026-05-10T04:48:32.651Z","creation":"2025-04-05T17:56:01.119Z"},"accession":"S-EPMC9510312","cross_references":{"pubmed":["37521771"],"doi":["10.1038/s42949-022-00070-0"]}}