Ключевые слова: air, air pollution, alert, cancer, caution, communication, concept, concepts, copy space, damage, danger, dangerous environmental damage, drawing, environment, environmental, gas, hand, handwriting, hazard, health, human hand, ideas, illness, info, info graphics, infographic, information, information equipment, information medium, lung cancer, lung disease, message, paper, poisonous, polluted, pollution, protection, radiation, radioactive, radioactive contamination, radioactivity, radon test, risk, safety, security, sickness, substance, toxic, warning, writing,