TY - JOUR A1 - Salma, I. A1 - Vörösmarty, M. A1 - Gyöngyösi, A. Z. A1 - Thén, W. A1 - Weidinger, T. T1 - What can we learn about urban air quality with regard to the first outbreak of the COVID-19 pandemic? A case study from Central Europe JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 2020 SP - 1 EP - 30 Y1 - 2020/10/09 PB - Copernicus Publications SN - 1680-7375 UR - https://acp.copernicus.org/preprints/acp-2020-997/ L1 - https://acp.copernicus.org/preprints/acp-2020-997/acp-2020-997.pdf DO - 10.5194/acp-2020-997 ER -