production facilities of the chernobyl nuclear power plant, ukraine. fourth emergency power unit and exclusion zone

abandoned accident architecture area blue building cable calamity capacity catastrophe cesium chernobyl climate closed concept construction contaminated contamination crash danger disaster eastern ecology electricity emergency energy environment europe exclusion facilities factoty fourth hangar industry line metal nuclear old physics plant plutonium pollution power pripyat production protection protective radiation radioactive radioactively science shelter sky soviet supply symbol technology toxic travel ukraine union unit ussr voltage zone