Ключевые слова: air, architecture, building, business, chemical, chimney, city, coal, construction, damage, dirty, ecology, energy, environment, environmental, equipment, europe, factory, foundry, fumes, gas, global, heavy, industrial, industry, iron stove, manufacturing, metal, metallurgical, metallurgy, petrochemical, pipe, plant, pollution, power, production, refinery, russia, smog, smoke, steam, steel, technology, tower, toxic, warming,