Río Otún vs Wuppertal

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The Otún River (Río Otún) is a river in the Risaralda department of Colombia. Its source is Lake Otún, fed by meltwater from Nevado Santa Isabel, and its outlet is the Cauca River. The Otún River passes between the cities of Pereira and Dosquebradas, and is crossed at that point by the César Gaviria Trujillo Viaduct, one of the largest cable-stayed bridges in South America. The Otún River is the only source of drinking water for Pereira and Dosquebradas.

The local water company takes about 1.8 cubic metres per second (64 cu ft/s) from the river at a site known as Nuevo Libaré. Agricultural development in that region has affected the quality of the water from the river, with pig and chicken farms as well as human waste water being major sources of bacteriological contamination.[1]The river passes through several protected zones including the Otún Quimbaya Flora and Fauna Sanctuary.

Source: Wikipedia

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Wuppertal (German pronunciation: [ˈvʊpɐtaːl] (listen)) is a city in North Rhine-Westphalia, Germany, in and around the Wupper valley, east of Düsseldorf and south of the Ruhr. With a population of approximately 350,000, it is the largest city in the Bergisches Land. Wuppertal is known for its steep slopes, its woods and parks, and its suspension railway, the Wuppertal Schwebebahn. It is the greenest city in Germany, with two-thirds green space of the total municipal area. From any part of the city, it is only a ten-minute walk to one of the public parks or woodland paths. In the 18th and 19th centuries, the Wupper valley was one of the largest industrial regions of continental Europe.

The increasing demand for coal from the textile mills and blacksmith shops encouraged the expansion of the nearby Ruhrgebiet. Wuppertal still is a major industrial centre, being home to industries such as textiles, metallurgy, chemicals, pharmaceuticals, electronics, automobiles, rubber, vehicles and printing equipment. Aspirin originates from Wuppertal, patented in 1897 by Bayer, as does the Vorwerk-Kobold vacuum cleaner.The Wuppertal Institute for Climate, Environment and Energy and the European Institute for International Economic Relations are located in the city.

Source: Wikipedia