By Ingrid Spilde writing for sciencenorway
The war in Ukraine has raised fears of a nuclear disaster. The Russians have nuclear weapons and any conflict with NATO increases the possibility of a nuclear war. Additionally, Ukraine has Nuclear reactors that have come under fire during the conflict.

The article by Ingrid Spilde writing for sciencenorway goes into great detail about the effects of a nuclear disaster and what we can do to mitigate the effects.
From the article,
The advice in Norway is to stay indoors for two days. During this time, the radioactive particles have either fallen and attached to soil, vegetation, roads, and buildings, or have been blown further away, At this point, it is safe to breathe in the air again. But the radioactive substances are not gone.
Read the full article at sciencenorway