Ключевые слова: air, atmosphere, building, business, chemical, chemistry, chimney, city, cloud, construction, dusk, ecology, energy, environment, evening, factory, fuel, gas, global, industrial, landscape, light, manufacturing, nature, night, oil, orange, petrochemical, pipe, plant, pollution, power, production, red, refinery, silhouette, sky, skyline, smog, smoke, smokestack, stack, steam, sun, sunrise, sunset, technology, tower, toxic, urban,