Ключевые слова: background, barrel, barrels, blue, chemical, container, crude, dirty, drum, dump, ecology, energy, environmental, factory, field, fuel, gallon, garbage, gas, gasoline, hazard, hazardous, horizontal, hydrocarbons, industrial, industry, liquid, metal, object, oil, old, outdoor, outdoors, petroleum, pollution, radioactive, recycling, red, rusty, safety, stacked, storage, symbol, tank, toxic, urban, vintage, warehouse, waste, yard,