radiation hazard sign of radhaz threat alert icon, black yellow triangle signage label macro, large detailed

active agent alert area atomic attention beware black bomb caution closeup contaminated contamination control danger dangerous disaster disease emergency energy environment environmental fallout fear forbidden gamma harmful hazard hazardous hazmat icon industrial industry isolated isotope label laboratory macro mark material materials notice nuclear pictogram poison poisonous power protect protection radhaz radiation radio radioactive radioactivity radioisotope radioisotopes radiological ray rentgen restricted risk safety scientific security sign signage signal station substance symbol threat toxic triangle warfare warn warning weapon yellow