Ключевые слова: alert, alpha, area, atom, atomic, attention, background, beware, black, bomb, button, caution, contamination, danger, dangerous, death, energy, gamma, graphic, grunge, hazard, icon radiation, industrial, industry, nuclear, pictogram, power, quarantine, radiation, radio, radioactive, radioactivity concepts, ray, risk, safety, science, sign, station, sticker, symbol, texture, toxic, uranium, war, warning, waste, yellow,