Study of relationship between indoor radon exposure and the Covid-19 case fatality rate.

This article raises the question whether there is in fact a specific field within civil engineering that may be connected to the impact of Covid-19, namely radon exposure in interior spaces in certain parts of the world. Radon exposure is particularly high in regions that have seen high mortality rates related to SARS-CoV-2. Examples of these include the Bergamo region in Italy and the Erz Mountains, the Fichtel Mountains or the Bavarian Forest in south-eastern Germany. But is there actually a correlation, or is this merely a coincidence? Is there in fact a causality? If so, constructional measures to protect against the decay products of radon in interior spaces would gain a new significance that goes beyond the realms of current knowledge. This article cannot provide a definitive answer to these questions due to the current patchiness of data in Germany. Nevertheless, this paper will use the data available to demonstrate that there is evidence of a possible correlation or causality between the two, and that this merits further research. [ABSTRACT FROM AUTHOR]