Ключевые слова: abstract, accident, active, activity, alert, atom, atomic, attention, black, caution, chemical, chemistry, conceptual, concrete, contaminated, contamination, crisis, danger, dangerous, disaster, energy, fear, grunge, hazard, icon, illustration, industrial, industry, logo, metal, nuclear, pattern, poisonous, pollution, power, radiation, radio, radioactive, radioactivity, risk, science, sign, stripe, symbol, threat, toxic, warning, yellow,