Ключевые слова: 3d, background, barrel, bio, biohazard, biological, biology, black, caution, chemical, contaminated, danger, dangerous, disaster, ecology, environment, environmental, gallon, garbage, generated, hazard, hazardous, heap, illustration, industrial, industry, isolated, lethal, many, material, object, poison, pollute, pollution, render, several, sign, storage, substance, symbol, toxic, toxin, trash, utilization, virus, warn, warning, waste, white, yellow,