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-{{:rmw_pollutants.png?direct&600|}}
+{{:bogota_river_pollutants.png|}}
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+//Characterisation of Local Pollution Sources by Province in the Bogotá River Watershed (Adapted from Environment & Society Portal, 2014)//
+The Bogotá River is considered one of the most contaminated rivers in the world. Pollution occurs throughout the Río Bogotá watershed, with the mid-basin, where the city of Bogotá is located, having the poorest water quality.
+The city of Bogotá contributes to most of the pollution (90%) of the Bogotá River. Around 90% of the pollution in the river originates from the three main tributaries within the city: Salitre, Fucha, and [[34| Tunjuelo]]. The city produces 16,000 litres of [[38| wastewater]] per second, of which only 25% (4,000 litres) is treated. The remaining wastewater is discharged directly into the Bogotá River without treatment. Domestic waste makes up 76% of the total pollution discharged into the river by the city. Pollutants include household waste (detergents, grease, sewage), industrial chemicals and heavy metals (chromium, lead, mercury, tannery waste), and [[27| solid]] waste (construction debris, [[36| tyres]], scrap wood, general trash). (Environment & Society Portal, 2014).
+Summary:
+The Bogotá River is one of the most contaminated in the World and spans six provinces, yet receives nearly 90% of its pollution from the city of Bogotá alone
+__Bibliography__
+Environment & Society Portal. (2014). Waste and water pollution. [online] Available at: https://www.environmentandsociety.org/exhibitions/water-bogota/waste-and-water-pollution.