Ключевые слова: accident, alert, announcement, attention, background, bad, beware, black, business, careful, caution, chemical, construction, damage, danger, dangerous, design, disease, effect, environment, equipment, error, harmful, hazard, health, impact, important, industry, information, injury, investigation, material, message, method, notice, notification, poison, procedure, product, protect, protection, risk, safety, secure, security, substance, under, warning, word, work,