Ключевые слова: aid, air, ambient, color, communication, disease, emergency, emissions, energy, engineering, environment, environmental, environments, fire, first, hand drawn, hazardous, health, hse, icon, illustration, individual, information, item, learning, maintaining, management, materials, monitoring, occupational, preparedness, prevention, protection, public, quality, retrieval, safety, saving, sketch, surrounding, symbol, waste, water, work,