Ключевые слова: canal, chemical, concrete, corrosion, danger, day, dirty, disaster, dump, ecology, environment, factory, fatal, flowing, garbage, global, harm, industrial, industry, influence, interior, liquid, natural, nature, old, outdoors, pipe, pipeline, pollution, pool, power, problems, refinery, rusty, scene, sewage, sewer, stream, substance, technology, toxic, tube, unhygienic, urban, view, warming, waste, water, waterfall, withdrawal,