Ключевые слова: area, atomic, attention, banner, bio, biohazard, biological, black, caution, contagious, contamination, danger, dangerous, dead, deteriorated, dirt, dirty, epidemic, grunge, hazard, health, icon, illustration, isolated, laboratory, medical, old, poison, protection, radiation, red, risk, rust, safety, scratch, security, sign, specimen, stop, symbol, toxic, virus, wallpaper, warning, waste, worn, yellow, zombie, zone,