Rio Guaíba
| Rio Guaíba | ||
 Guaíba near Porto Alegre |
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| Data | ||
| location | State of Rio Grande do Sul , Brazil | |
| River system | Lake Guaíba | |
| Drain over | Lagoa dos Patos → Atlantic | |
| origin |
Jacuí Delta at Porto Alegre 30 ° 2 ′ 25 ″ S , 51 ° 14 ′ 50 ″ W |
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| muzzle | in the Lagoa dos Patos coordinates: 30 ° 22 ′ 41 ″ S , 51 ° 4 ′ 39 ″ W 30 ° 22 ′ 41 ″ S , 51 ° 4 ′ 39 ″ W
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| length | 50 km | |
| Big cities | Porto Alegre | |
| Medium-sized cities | Guaíba | |
The Lago Guaíba is the 50 km long, 496 km² comprehensive confluence of 5 rivers in the state of Rio Grande do Sul in the south of Brazil . In the northeast of the estuary is Porto Alegre .
The hydrographic basin comprises the areas:
- Rio Gravataí ,
- Rio dos Sinos with the big cities Novo Hamburgo and São Leopoldo ,
- Rio Caí flowing through Caxias do Sul ,
- Rio Taquari and
- Rio Jacuí .
The Lago Guaíba, which looks like a lagoon , merges into the even larger Lagoa dos Patos .
Some of the tributaries have been heavily polluted by industrial wastewater (e.g. leather industry ), pesticides and untreated household wastewater. This led to various high-profile campaigns by environmental groups that brought city dwellers, farmers and even indigenous groups together in the original forests ( Mata Atlântica ) of the source areas of the rivers.
Web links
Commons : Lago Guaíba - collection of images, videos and audio files
