Not saying they are connected, but these fires are right near, and along one of the way-point areas and routes used by civilian dressed SVR and Russian spetsnaz in transit, to multiple U.S./UA training sites.
The fires are not that big, and almost can’t be in this area, this time of year. The forest are mixed, but there is quite a bit of hardwood in this area.
Would have to look at the weather forensically in time, but upon initial observation, and known seasonal weather patterns, this is already not normal for this time of year.
Right now, the wind direction is generally normal for this time of year.
That being said, at the moment of the Sat image published here, the wind was normal from NW to SE, and the fires are more aligned along the covert transit routes from NE to SW.
As well, prolonged exposure to 2.3 sieverts/per hour is not really a good thing. Natural “background” radiation generally ranges from 0.16-0.40 microsieverts/h.
I am sure they have been looked at a whole lot in the past week, but it would be good to see the historical radiation envelope.
Midnight at chernobyl is a must read.