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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Estadual Paulista Júlio de Mesquita Filho
2018
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=42956169008 https://www.redalyc.org/journal/429/42956169008/ https://www.redalyc.org/journal/429/42956169008/html/ https://www.redalyc.org/journal/429/42956169008/42956169008.epub https://www.redalyc.org/journal/429/42956169008/movil https://doi.org/10.26850/1678-4618eqj.v43.2.2018.p51-58 |
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Inhaltsangabe:
- Evaluation of the water quality of the Verde River, Ponta Grossa, PR: a study on the conditions of aquatic life maintenance and the eutrophication process Karine Andréa Costa Elizabeth Weinhardt Oliveira Scheffer Patrícia Los Weinert Estevan Luis Silveira Química river aquatic biota index of quality This study was to evaluate the physicochemical parameters that express the water quality of the Verde River, in the city of Ponta Grossa, Paraná. Multivariate Analysis was used, and quality indexes were obtained, such as the Trophic State Index (TSI) and the Water Quality Index for Aquatic Life Protection (WQIALP). River samples were collected at 4 points along the Verde River for 12 months. The results indicated that, at point 4, downstream from the Sewage Treatment Plant (STS), the aquatic environment is very poor for the biota. The calculation of the WQIALP showed BAD to VERY BAD quality, and the disposal of the effluent was indicated as the cause. It was also concluded that points 1 and 2 correspond to more preserved sites but are not totally favourable to aquatic life either because they receive surface drainage from agricultural areas in the basin. Point 3, of urban character, suffers an impact caused by irregular connections of sewers, and contribution of streams that flow into the river. For all sampling points, TSI > 67 for more than 90% of the samples, indicating hypereutrophic environments throughout the river. The quality indexes applied in this work were faithful to the reality found for the water of the Verde River. 2018 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42956169008 https://www.redalyc.org/journal/429/42956169008/ https://www.redalyc.org/journal/429/42956169008/html/ https://www.redalyc.org/journal/429/42956169008/42956169008.epub https://www.redalyc.org/journal/429/42956169008/movil https://doi.org/10.26850/1678-4618eqj.v43.2.2018.p51-58 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.2 Vol.43