Ключевые слова: air, air pollution, cancer, communication, concept, concepts, copy space, danger, dangerous, drawing, environment, environmental, front view, gas, hand, handwriting, health, human hand, ideas, illness, info, info graphics, infographic, information, information equipment, information medium, lung cancer, lung disease, message, paper, polluted, pollution, radiation, radioactive, radioactive contamination, radioactivity, radon test, risk, security, sickness, text, warning, writing,