Ключевые слова: alarm, alert, atomic, attention, background, black, caution, chemistry, contamination, danger, dangerous, design, disaster, emission, energy, graphic, hazard, icon, illustration, industrial, label, material, merchandise, nobody, nuclear, object, pack, package, plutonium, pollution, protect, protection, radiation, radioactive, radioactivity, reactor, recycle, recycling, safety, sign, standard, sticker, symbol, uranium, warning, waste,