{"refrec":{"BRefID":337609,"RR":"<b>Ding, J.; van der A, R.J.; Eskes, H.J.; Mijling, B.; Stavrakou, T.; van Geffen, J.H.G.M.; Veefkind, J.P.</b> (2020). NO<sub>x</sub> emissions reduction and rebound in China due to the COVID-19 crisis. <i>Geophys. Res. Lett. 47(19)</i>: e2020GL089912. <a href=\"https://hdl.handle.net/10.1029/2020GL089912\" target=\"_blank\">https://hdl.handle.net/10.1029/2020GL089912</a>","BEntID":334232,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geophys. Res. Lett. 47(19)</i>: e2020GL089912. <a href=\"https://hdl.handle.net/10.1029/2020GL089912\" target=\"_blank\">https://hdl.handle.net/10.1029/2020GL089912</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Ding, J.; van der A, R.J.; Eskes, H.J.; Mijling, B.; Stavrakou, T.; van Geffen, J.H.G.M.; Veefkind, J.P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Ding, J. <i>et al.</i>","Englishabstract":"During the COVID-19 lockdown (24 January–20 March) in China low air pollution levels were reported in the media as a consequence of reduced economic and social activities. Quantification of the pollution reduction is not straightforward due to effects of transport, meteorology, and chemistry. We have analyzed the NO<sub>x</sub> emission reductions calculated with an inverse algorithm applied to daily NO<sub>2</sub> observations from TROPOMI onboard the Copernicus Sentinel-5P satellite. This method allows the quantification of emission reductions per city and the analysis of emissions of maritime transport and of the energy sector separately. The reductions we found are 20–50% for cities, about 40% for power plants, and 15–40% for maritime transport depending on the region. The reduction in both emissions and concentrations shows a similar timeline consisting of a sharp reduction (34–50%) around the Spring festival and a slow recovery from mid-February to mid-March.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"NO<sub>x</sub> emissions reduction and rebound in China due to the COVID-19 crisis","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:32:11.017316","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"COVID-19; NOx emissions; China; TROPOMI","OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2021-05-22","DateCreate":"2021-05-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000584669000013","VABBcode":null,"OpenAcc":1,"Handle":"10.1029/2020GL089912"},"refs":null,"anarec":{"AnaID":337609,"PubliDate":2020,"Pagination":"e2020GL089912","XtraPublOfAnaID":null,"ISBN":null,"Volume":"47","Issue":"19","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42920,"SerRR":"Geophysical Research Letters. 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