Ключевые слова: air pollution, architecture, background, brick, building, building exterior, chemical, chimney, city, city life, closed, construction, dirty, ecology, emission, exterior, factory, history, industrial, industrial building, industrial district, industry, large, local landmark, low angle view, manufacturing, old, place of work, pollution, red, rusty, sky, smoke, smoke stack, stack, stone, structure, tall, technology, tower, toxic, tube, urban, vintage, warming,