Data from the COVID-AQS database are provided with free and unrestricted access for scientific
(non-commercial) use. It is our philosophy to maximize the scientific use of the data collected
in this database.
Users of the COVID-AQS data agree to:
Include the following acknowledgments in publications: “COVID-19 Air Quality Data Collection
(2021), version XX, last updated YYYY-MM-DD from: https://covid-aqs.fz-juelich.de was used in
Cite the dataset and following the original reference of the database: Gkatzelis et al. (2021).
“The Global Impacts of COVID-19 Lockdowns on Urban Air Pollution: A Critical Review and
Recommendations”, Elementa, 10.1525/elementa.2021.00176.