Ключевые слова: banner, chemical, contamination, danger, dirty, disaster, discharge, drain, drainage, dump, ecology, ecosystem, energy, environment, environmental, factory, flow, flowing, garbage, global, industrial, industry, issue, liquid, natural, nature, pipe, plant, pollution, pouring, problem, production, river, rusty, sanitary, sewage, sewer, stream, substance, technology, toxic, tube, warming, waste, waste toxic, wastewater, water,