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- Title
Rural and Urban Streams: Anthropogenic Influences and Impacts on Water and Sediment Quality.
- Authors
Kühl, Adelina Maria; Mello Sartori Cardoso da Rocha, Carmen Lúcia; Gaeta Espíndola, Evaldo Luiz; LansacTôha, Fábio Amodêo
- Abstract
The Pirapó river watershed Paraná State, Brazil compounds a relatively industrialized and urbanized region, undergoing great pressure from the discharge of industrial, agricultural and domestic wastes. We evaluated the environmental quality of ten streams belonging to this watershed in April and June 2008 by performing acute and chronic toxicity tests with Daphnia similisand Ceriodaphnia silvestriifrom water and sediment samples. We tested the hypothesis that the streams located in urban areas are more exposed to the influence of pollutants, than those outside the city limits. In addition, we obtained the measures of physical and chemical parameters, and identified the main polluted sources. Contrary to what was expected, the rural streams were more toxic than those located in urban area. These results demonstrate that the water bodies located in rural areas are being affected by the pollution of aquatic ecosystems as far as those found in urban areas, requiring the same attention of environmental managers in relation to its monitoring. © 2010 WILEYVCH Verlag GmbH & Co. KGaA, Weinheim
- Subjects
PARANA (Brazil : State); BRAZIL; URBAN geography; RURAL geography; RIVERS; WATER quality; SEDIMENTS; SEWAGE purification; AGRICULTURAL wastes; INDUSTRIAL wastes
- Publication
International Review of Hydrobiology, 2010, Vol 95, Issue 3, p260
- ISSN
1434-2944
- Publication type
Article
- DOI
10.1002/iroh.200911190