If Germany would want to minimize the risk of radioactive pollution, it would have to build plenty nuclear reactors at its eastern border and sell that energy to France below market value.
Then, as long as France doesn't cut Germany off, the French nuclear reactors would be shut down and the risk of nuclear pollution for Germany would be reduced.
Germany has by far the dirtiest energy produciton in Western Europe. On average, every German citizen produces almost twice as much CO2 than the average French or Brit:
https://ourworldindata.org/grapher/co-emissions-per-capita
And talking about risks: Brown coal ist BY FAR the most dangerous form of energy:
https://ourworldindata.org/grapher/death-rates-from-energy-p...
A predictable number of deaths is not a danger but damage.