Ключевые слова: adult, air, caucasian, chemical, chemistry, chimney, damage, danger, dirty, engineer, environmental, ethnicity, factory, flame, fossil, fuel, fumes, gas, generation, glove, hardhat, industry, looking, males, manufacturing, mask, men, night, occupation, oil, one, outdoors, person, physical, poisonous, pollution, power, protective, refinery, scientist, smoke, steam, steel, structure, technology, toxic, waste, working, workwear, yellow,