Ключевые слова: canal, chemical, concrete, corrosion, danger, day, dirty, disaster, dump, ecology, energy, environment, factory, fatal, flowing, garbage, global, harm, image, industrial, industry, influence, liquid, natural, nature, nobody, old, outdoors, pipe, pipeline, pollution, power, problems, refinery, river, rusty, s, scene, sewage, sewer, sky, stream, substance, technology, toxic, tube, unhygienic, urban, view, warming, waste, water, waterfall dirty, withdrawal,