Impacts of the Urbanization Process on Water Quality of Brazilian Savanna Rivers: The Case of Preto River in Formosa, Goiás State, Brazil.
The release of domestic sewage in water resources is a practical feature of the urbanization process, and this action causes changes that may impair the environmental balance and the water quality for several uses. The aim of this study was to evaluate the influence of urbanization on the surface water quality of the Preto River throughout the town of Formosa, Goiás, Brazil. Samples were collected at five points along the river, spatially distributed from one side to the other of the town of Formosa, from May to October of 2012. Data were subjected to descriptive statistics, as well as variance and cluster analysis. Point P2, the first point after the city, showed the worst water quality indicators, mainly with respect to the total and fecal coliform parameters, as well as nitrate concentrations. These results may be related to the fact that this point is located on the outskirts of the town, an area under urbanization and with problems of sanitation, including absence of sewage collection and treatment. The data observed in this monitoring present a public health concern because the water body is used for bathing, mainly in parts of Feia Lagoon. The excess of nutrients is a strong indicator of water eutrophication and should alert decision-makers to the need for preservation policies.
Programa de Pós-Graduação em Meio Ambiental e Desenvolvimento Rural (PPG-MADER), da Faculdade UnB Planaltina (FUP), Universidade de Brasília, CEP, 73300000, Planaltina, DF, Brazil. libortoluzzi@yahoo.com.br.|Department of Education, Universidade Estadual de Goiás-UEG, CEP 73807250, Formosa, GO, Brazil. libortoluzzi@yahoo.com.br.
Nayara Luiz
NL
Pires
Programa de Pós-Graduação em Meio Ambiental e Desenvolvimento Rural (PPG-MADER), da Faculdade UnB Planaltina (FUP), Universidade de Brasília, CEP, 73300000, Planaltina, DF, Brazil. jorge.werneck-lima@embrapa.br.|Laboratório de Ecotoxicologia, Embrapa Cerrados, CEP 73310-970, Planaltina, DF, Brazil. jorge.werneck-lima@embrapa.br.
Daphne Heloisa de Freitas
DH
Muniz
Programa de Pós-Graduação em Meio Ambiental e Desenvolvimento Rural (PPG-MADER), da Faculdade UnB Planaltina (FUP), Universidade de Brasília, CEP, 73300000, Planaltina, DF, Brazil. tiagobk.df@gmail.com.
Tiago Borges
TB
Kisaka
Programa de Pós-Graduação em Meio Ambiental e Desenvolvimento Rural (PPG-MADER), da Faculdade UnB Planaltina (FUP), Universidade de Brasília, CEP, 73300000, Planaltina, DF, Brazil. nathan.simplicio@gmail.com.|Centro Universitário de Brasília-UniCEUB, CEP 70790075, Brasília, DF, Brazil. nathan.simplicio@gmail.com.
Nathan de Castro Soares
Nde C
Simplicio
Department of Education, Universidade Estadual de Goiás-UEG, CEP 73807250, Formosa, GO, Brazil. libortoluzzi@yahoo.com.br.
Lilian
L
Bortoluzzi
Laboratório de Ecotoxicologia, Embrapa Cerrados, CEP 73310-970, Planaltina, DF, Brazil. jorge.werneck-lima@embrapa.br.
Jorge Enoch Furquim Werneck
JE
Lima
Programa de Pós-Graduação em Meio Ambiental e Desenvolvimento Rural (PPG-MADER), da Faculdade UnB Planaltina (FUP), Universidade de Brasília, CEP, 73300000, Planaltina, DF, Brazil. eduardo.cyrino@embrapa.br.|Laboratório de Ecotoxicologia, Embrapa Cerrados, CEP 73310-970, Planaltina, DF, Brazil. eduardo.cyrino@embrapa.br.|Centro Universitário de Brasília-UniCEUB, CEP 70790075, Brasília, DF, Brazil. eduardo.cyrino@embrapa.br.
Eduardo Cyrino
EC
Oliveira-Filho
D001938:Brazil; D004784:Environmental Monitoring; D065948:Grassland; D045483:Rivers / Q000737:chemistry*; D014507:Urbanization; D014874:Water Pollutants, Chemical / Q000032:analysis*; D060753:Water Quality
D014874:Water Pollutants, Chemical
macrophytes; urban sewerage; water contamination; water sources