Radiation Danger Sign on Barbed Wire Fence with Butterfly in Slow Motion 4K

radiation sign exclusion zone chernobyl trefoil radioactive atom contamination danger deserted fence barbed wire exclusion hazard power tragedy disaster chemical avoid caution safety symbol threat toxic poison perimeter fence security atomic closed forbidden prypyat 4k decay military factory pollution nuclear reactor radioisotope fukishima kiev enviroment risk nuclear radiation sign biohazard geiger counter background slow motion cancer pripyat butterfly