There is done research on this socalled" fog" in the netherlands

Serratia marcescens

This explanation concerns the bacteria that were found through various laboratory test results in the mist from January 14 to January 20, 2025.

S. marcescens is a motile organism and can grow at temperatures ranging from 5 to 40 °C.
It could be the fungus Serratia marcescens. This fungus is particularly harmful to your health. Never let this fungus linger for long. The red fungus can cause various physical issues, such as skin problems, eye infections, and throat infections.