Ключевые слова: barrel, blue, chemical, container, contamination, corroded, danger, dirty, drum, dump, earth, ecology, environment, environmental, field, freight, fuel, gallon, garbage, gas, green, grunge, hazard, hazardous, industrial, industry, line, metal, oil, old, petrol, petroleum, poison, pollute, pollution, power, radioactive, red, rust, safety, station, steel, symbol, tank, toxic, train, urban, waste, white,