The funny thing is these plots aren't even realistic. They don't take into consideration environmental factors that effect the blast radius and most importantly the wind which is the most important thing to consider.
Also, tactical nukes with a short half life can't be compared to something that has a multiple century half life.... even at the same yield.
If you use the
right material you could render a country uninhabitable for hundreds of years.
I used to plot the fallout zones for nuclear detonations, chemical and biological releases and radiological events.
So, if you rework the plots you need to consider another
250 Kilometers of fallout zones (1 and 2) in the direction of a wind 12 KPH or greater.
Zone one being a quicker death depending on dosage than zone two where you die a slow and painful one.
Add rain and the radiation stays at a higher level further along the downwind path.
This is a 1MT blast from a tac nuke with a 200 mile run out. Put your blast in the small circle that is GZ and turn it in whatever wind direction you want.