Well I would doubt they would want a repercussion of Chenobyl, but they do have lots of reactors near the border, they called on the assistance of the world to ensure their continuing safety when this all cracked off.
They do however have the main Russian gas pipelines flowing through the country which supplys 80% of the Russian gas and could pretty much destroy the infrastructure to that as they retreated, a bit like Saddam and the oilfields. That would hurt Russia economically in the short term. Surprised they haven't used that as a bargaining chip on both sides, telling Europe if they get invaded and no one helps they will destroy it.