Global air quality change during the COVID-19 pandemic: Regionally different ozone pollution responses COVID-19

Adams, 2020, Air pollution in Ontario, Canada during the COVID-19 state of emergency, Sci. Total Environ., 742, 10.1016/j.scitotenv.2020.140516 Atkinson, 2016, Long-term exposure to ambient ozone and mortality: a quantitative systematic review and meta-analysis of evidence from cohort studies, BMJ Open, 6, 10.1136/bmjopen-2015-009493 Bauwens, 2020, Impact of coronavirus outbreak on NO 2 pollution assessed using TROPOMI and OMI observations, Geophys. Res. Lett., 47, 10.1029/2020GL087978 Chang, 2009, Climate responses to direct radiative forcing of anthropogenic aerosols, tropospheric ozone, and long-lived greenhouse gases in eastern China over 1951–2000, Adv. Atmos. Sci., 26, 748, 10.1007/s00376-009-9032-4 Chen, 2020, Understanding the causal influence of major meteorological factors on ground ozone concentrations across China, J. Clean. Prod., 242, 10.1016/j.jclepro.2019.118498 Choi, 2012, Summertime weekly cycles of observed and modeled NOx and O3 concentrations as a function of satellite-derived ozone production sensitivity and land use types over the Continental United States, Atmos. Chem. Phys., 12, 6291, 10.5194/acp-12-6291-2012 Cohen, 2020, Strategies shift as coronavirus pandemic looms, Science, 367, 962, 10.1126/science.367.6481.962 Collivignarelli, 2020, Lockdown for CoViD-2019 in Milan: what are the effects on air quality?, Sci. Total Environ., 732, 10.1016/j.scitotenv.2020.139280 Connerton, 2020, Air quality during COVID-19 in four megacities: lessons and challenges for public health, Int. J. Environ. Res. Public Health, 17, 5067, 10.3390/ijerph17145067 Cousineau, 2010, Outliers detection and treatment: a review, Int. J. Psychol. Res. Medellin, 3, 58, 10.21500/20112084.844 Ding, 2013, Ozone and fine particle in the western Yangtze River Delta: an overview of 1yr data at the SORPES station, Atmos. Chem. Phys., 13, 5813, 10.5194/acp-13-5813-2013 Ding, 2008, Tropospheric ozone climatology over Beijing: analysis of aircraft data from the MOZAIC program, Atmos. Chem. Phys., 8, 1, 10.5194/acp-8-1-2008 Duncan, 2010, Application of OMI observations to a space-based indicator of NOx and VOC controls on surface ozone formation, Atmos. Environ., 44, 2213, 10.1016/j.atmosenv.2010.03.010 Feng, 2015, Ground-level O3 pollution and its impacts on food crops in China: a review, Environ. Pollut., 199, 42, 10.1016/j.envpol.2015.01.016 Fiore, A.M., Jacob, D.J., Bey, I., Yantosca, R.M., Field, B.D., Fusco. A.C., 2002. Background ozone over the United States in summer: origin, trend, and contribution to pollution episodes. J. Geophys. Res.: Atmos., 107(D15).107 (D15). doi:10.1029/2001jd000982. Gao, 2013, The impact of emission and climate change on ozone in the United States under representative concentration pathways (RCPs), Atmos. Chem. Phys., 13, 9607, 10.5194/acp-13-9607-2013 Haagen-Smit, 1952, Chemistry and physiology of Los Angeles smog, Ind. Eng. Chem., 44, 1342, 10.1021/ie50510a045 He, 2020, The long-term trend and production sensitivity change in the US ozone pollution from observations and model simulations, Atmos. Chem. Phys., 20, 3191, 10.5194/acp-20-3191-2020 Huang, 2016, Effects of aerosol–radiation interaction on precipitation during biomass-burning season in East China, Atmos. Chem. Phys., 16, 10063, 10.5194/acp-16-10063-2016 Huang, 2020, Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China, Natl. Sci. Rev. Jerrett, 2009, Long-term ozone exposure and mortality, N. Engl. J. Med., 360, 1085, 10.1056/NEJMoa0803894 Jin, 2017, Evaluating a space-based indicator of surface ozone-NOx-VOC sensitivity over midlatitude source regions and application to decadal trends, J. Geophys. Res. Atmos., 122, 439, 10.1002/2017JD026720 Jin, 2015, Spatial and temporal variability of ozone sensitivity over China observed from the ozone monitoring instrument, J. Geophys. Res. Atmos., 120, 7229, 10.1002/2015JD023250 Lu, 2019, Meteorology and climate influences on tropospheric ozone: a review of natural sources, chemistry, and transport patterns, Curr. Pollut. Rep., 5, 238, 10.1007/s40726-019-00118-3 Menut, 2020, Impact of lockdown measures to combat Covid-19 on air quality over western Europe, Sci. Total Environ., 741, 10.1016/j.scitotenv.2020.140426 Pope, 2016, The impact of synoptic weather on UK surface ozone and implications for premature mortality, Environ. Res. Lett., 11, 10.1088/1748-9326/11/12/124004 Sicard, 2020, Amplified ozone pollution in cities during the COVID-19 lockdown, Sci. Total Environ., 735, 10.1016/j.scitotenv.2020.139542 Sillman, 1999, The relation between ozone, NOx and hydrocarbons in urban and polluted rural environments, Atmos. Environ., 33, 1821, 10.1016/S1352-2310(98)00345-8 Souri, 2020, Revisiting the effectiveness of HCHO/NO2 ratios for inferring ozone sensitivity to its precursors using high resolution airborne remote sensing observations in a high ozone episode during the KORUS-AQ campaign, Atmos. Environ., 224, 10.1016/j.atmosenv.2020.117341 Swackhamer, 1991, Rethinking the ozone problem in urban and regional air pollution, J. Aerosol Sci., 24, 977, 10.1016/0021-8502(93)90076-L Tang, 2020, Biomass-burning-induced surface darkening and its impact on regional meteorology in eastern China, Atmos. Chem. Phys., 20, 6177, 10.5194/acp-20-6177-2020 Venter, 2020, COVID-19 lockdowns cause global air pollution declines, Proc. Natl. Acad. Sci., 10.1073/pnas.2006853117 Wang, 2020, A novel coronavirus outbreak of global health concern, Lancet, 395, 470, 10.1016/S0140-6736(20)30185-9 Wang, 2019, Aggravating O3 pollution due to NOx emission control in eastern China, Sci. Total Environ., 677, 732, 10.1016/j.scitotenv.2019.04.388 Wang, 2010, Air quality during the 2008 Beijing Olympics: secondary pollutants and regional impact, Atmos. Chem. Phys., 10, 7603, 10.5194/acp-10-7603-2010 Wang, 2017, Ozone pollution in China: a review of concentrations, meteorological influences, chemical precursors, and effects, Sci. Total Environ., 575, 1582, 10.1016/j.scitotenv.2016.10.081 Xu, 2020, Understanding ozone pollution in the Yangtze River Delta of eastern China from the perspective of diurnal cycles, Sci. Total Environ., 752 Xu, 2018, Impact of biomass burning and vertical mixing of residual-layer aged plumes on ozone in the Yangtze River Delta, China: a tethered-balloon measurement and modeling study of a multiday ozone episode, J. Geophys. Res. Atmos., 123, 786, 10.1029/2018JD028994 Xue, 2014, Ground-level ozone in four Chinese cities: precursors, regional transport and heterogeneous processes, Atmos. Chem. Phys., 14, 13175, 10.5194/acp-14-13175-2014 Zhao, 2020, Substantial changes in nitrogen dioxide and ozone after excluding meteorological impacts during the COVID-19 outbreak in mainland China, Environ. Sci. Technol. Lett., 7, 402, 10.1021/acs.estlett.0c00304 Zhu, 2015, Impact of Shanghai urban land surface forcing on downstream city ozone chemistry, J. Geophys. Res. Atmos., 120, 4340, 10.1002/2014JD022859