Semczuk-Kaczmarek, Karolina http://orcid.org/0000-0002-3200-8424
Rys-Czaporowska, Anna
Sierdzinski, Janusz
Kaczmarek, Lukasz Dominik
Szymanski, Filip Marcin
Platek, Anna Edyta
Article History
Received: 6 May 2021
Accepted: 20 August 2021
First Online: 12 October 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The study was an observational study based on the generally available data (exposure to air pollution, number of COVID-19 cases and deaths in Poland). No written informed consent to participate in the study was required.