Ключевые слова: air, area, asian, background, bad, breathe, business, businessman, city, concept, corporate, damage, danger, dangerous, destruction, dirty, ecology, emergency, environment, environmental, fog, forest, gas, gesture, global, hand, hazard, health, industry, male, man, manager, mask, people, polluted, pollution, prevent, prohibit, protection, protective, respirator, safety, smoke, stop, suit, toxic, warming, warn, wearing, young,