Seasonal evaluation of surface water quality at the Tamanduá stream watershed (Aparecida de Goiânia, Goiás, Brazil) using the Water Quality Index
| Autor: | Douglas Pereira da Silva Pitaluga, Débora Pereira da Silva, Paulo Sérgio Scalize, Hebert Oliveira Santos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
Index (economics) Watershed Tamandua water quality index Aerospace Engineering 010501 environmental sciences water resources 01 natural sciences Surface water quality General Materials Science Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Hydrology biology Mechanical Engineering bathing 04 agricultural and veterinary sciences biology.organism_classification Engineering (General). Civil engineering (General) Water resources 040102 fisheries 0401 agriculture forestry and fisheries Environmental science Water quality TA1-2040 |
| Zdroj: | Open Engineering, Vol 9, Iss 1, Pp 90-98 (2019) |
| ISSN: | 2391-5439 |
| Popis: | Freshwater is an essential natural resource for humanity, however, its quality has been compromised as a result of natural and anthropogenic interference. The objective of the present study was to determine the Bascarán Water Quality Index (WQIB ) for the Tamanduá stream in the municipality of Aparecida de Goiânia, Goiás, Brazil, and relate it to the limits established by CONAMA resolutions nº 357 [1] and nº 274 [2], for Class 2 freshwater bodies. The study was carried out at three sampling points proximate to urban parks, with samples collected in both the dry and the rainy seasons with the measurement of flow. The physical, chemical and biological parameters were analyzed as recommended in Standard Methods [3]. Parametric descriptive statistics were used for data analysis. The WQIB results classified the water as acceptable (24%), normal (48%), improper (20%) and unpleasant (8%), with turbidity, DO and total coliforms responsible for decreased WQIB in the rainy season. The parameters pH, apparent color and DO do not conform with CONAMA resolution nº 357 [1] while water resources for bathing were classified as excellent according to CONAMA resolution nº 274 [2]. |
| Databáze: | OpenAIRE |
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