Ключевые слова: air pollution, animal poisoning, brick chimney, chemical, clouds of smoke, color image, damage, damaged, dirty, ecology, energy, environmental, environmental poisoning, environmental pollution, environmental protection, factory, fight against pollution, harmful dust, heavy industry, industrial, industry, melting, nature protection, old chimney, pipe, plant poisoning, pollution, smog, smoke, station, toxic fallout, toxic smoke, water vapor,