Ключевые слова: barrel, barrels, blue, chemical, chemicals, chemistry, container, corrosive, crude, danger, dirty, drum, ecology, empty, environment, environmental, event, factory, flammable, fuel, gallon, garbage, gas, gasoline, hazard, hazardous, horizontal, hydrocarbons, industrial, industry, liquid, metal, metallic, oil, old, petroleum, pile, poison, pollution, radioactive, recycle, recycling, safety, stack, stacked, storage, tank, toxic, warehouse, waste,