radioactive atomic ionizing radiation danger warning in triangular yellow painted massive cracked concrete wall

abandoned alert and atomic attention background black building careful caution cem cement chemistry concrete contamination cracked danger dangerous dark derelict design dirty emission energy enter factory format grunge grungy hazard icon industrial ionizing life massive material not nuclear old painted plutonium pollution power precaution protection radiation radioactive radioactivity reactor safety shape sign square symbol texture threatening triangular uranium wall warning waste weathered word yellow