Both Chernobyl and now Fukushima are Level 7 Hazards

A level 7 hazard nuclear power plant means that it is in a meltdown phaze or post meltdown phaze. So at this point so much radiation including Cesium (Caesium) with a half life of 30+ years that large areas of both Chernobyl and the Fukushima and surrounding areas won't be habitable or usable unless you want to get cancer or dna defects for around 150 years minimum. Chernobyl is already 25 years into this no human life in that area cycle. The Fukushima area is just beginning this 25 year cycle of no use on land or water in that area.

Also, since plutonium has a 24,100 year half life (two times or more recorded human history forward) nothing will be able to live there without getting sick wherever the plutonium is or will be during that time as it moves around the world and into and out of human, animal, bird and fish and plant bodies killing many along the way. Since even one particle of Cesium or Plutonium can kill if it stays in one's lungs or inside one's body over about 20 or more years this is something to think about.