Ключевые слова: acid, air, building exterior, chemical, chimney, chimneys, city, construction site, copy space, cover, crane, damage, damaged, danger, development, dirty, ecology, emission, energy, environmental, exhaust, factory, global, industrial, industry, issues, low ange vie, machine, machinery, manufacturing, no people, orange color, outdoors, ozone, plant, pollution, power, production, site, sky, smocke stack, smog, smoke, smoked stacks, smoking, stack, toxic, urban, warming, waste,