Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado
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Publication Date: | 2011 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Acta Limnologica Brasiliensia (Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300009 |
Summary: | INTRODUCTION: Brazil's Federal District (FD) has seen steep population growth in recent years, and this has increased demand for high-quality water. AIM: The present work aims to evaluate the quality of surface water from two water bodies in the FD at six sampling points, three of which are in the Sobradinho River (the receiving body of a sewage treatment plant effluent) and three in the Jardim River (located in an agricultural region). METHODS: Analyses were carried out every thirty days, for twelve months, covering rainy and dry seasons. Parameters were analyzed such as temperature, pH, dissolved oxygen (DO), conductivity, turbidity, total hardness, main ions, total and fecal coliforms (E. coli) in water. Ecotoxicological evaluation was also performed, using the micro-crustacean Ceriodaphnia dubia. RESULTS: Data of physical and chemical determinations showed DO, conductivity, Cl-, NO3-, SO4(2-) and Na+ to be important in indicating contamination by urban effluents. On the subject of biological parameters - E. coli and ecotoxicological evaluation - the former was seen to be more effective in the urban area. However, in the countryside, the assay with C. dubia proved to be the most sensitive, although less than ideal, because the organism is very sensitive to low water hardness. CONCLUSIONS: The fecal coliform indicator (E. coli) was the most effective one for comparing water quality in the two basins, mainly for the urbanized one, while ecotoxicity assays with C. dubia were harmed by the natural chemical composition of the water. |
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Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerradowater hardnessecotoxicologywater resourcescalciumbioindicatorsINTRODUCTION: Brazil's Federal District (FD) has seen steep population growth in recent years, and this has increased demand for high-quality water. AIM: The present work aims to evaluate the quality of surface water from two water bodies in the FD at six sampling points, three of which are in the Sobradinho River (the receiving body of a sewage treatment plant effluent) and three in the Jardim River (located in an agricultural region). METHODS: Analyses were carried out every thirty days, for twelve months, covering rainy and dry seasons. Parameters were analyzed such as temperature, pH, dissolved oxygen (DO), conductivity, turbidity, total hardness, main ions, total and fecal coliforms (E. coli) in water. Ecotoxicological evaluation was also performed, using the micro-crustacean Ceriodaphnia dubia. RESULTS: Data of physical and chemical determinations showed DO, conductivity, Cl-, NO3-, SO4(2-) and Na+ to be important in indicating contamination by urban effluents. On the subject of biological parameters - E. coli and ecotoxicological evaluation - the former was seen to be more effective in the urban area. However, in the countryside, the assay with C. dubia proved to be the most sensitive, although less than ideal, because the organism is very sensitive to low water hardness. CONCLUSIONS: The fecal coliform indicator (E. coli) was the most effective one for comparing water quality in the two basins, mainly for the urbanized one, while ecotoxicity assays with C. dubia were harmed by the natural chemical composition of the water.Associação Brasileira de Limnologia2011-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300009Acta Limnologica Brasiliensia v.23 n.3 2011reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/S2179-975X2012005000009info:eu-repo/semantics/openAccessMuniz,Daphne Heloisa de FreitasMoraes,Aline SilvaFreire,Ingrid de SouzaCruz,Carlos José Domingos daLima,Jorge Enoch Furquim WerneckOliveira-Filho,Eduardo Cyrinoeng2012-04-19T00:00:00Zoai:scielo:S2179-975X2011000300009Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2012-04-19T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
title |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
spellingShingle |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado Muniz,Daphne Heloisa de Freitas water hardness ecotoxicology water resources calcium bioindicators |
title_short |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
title_full |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
title_fullStr |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
title_full_unstemmed |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
title_sort |
Evaluation of water quality parameters for monitoring natural, urban, and agricultural areas in the Brazilian Cerrado |
author |
Muniz,Daphne Heloisa de Freitas |
author_facet |
Muniz,Daphne Heloisa de Freitas Moraes,Aline Silva Freire,Ingrid de Souza Cruz,Carlos José Domingos da Lima,Jorge Enoch Furquim Werneck Oliveira-Filho,Eduardo Cyrino |
author_role |
author |
author2 |
Moraes,Aline Silva Freire,Ingrid de Souza Cruz,Carlos José Domingos da Lima,Jorge Enoch Furquim Werneck Oliveira-Filho,Eduardo Cyrino |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Muniz,Daphne Heloisa de Freitas Moraes,Aline Silva Freire,Ingrid de Souza Cruz,Carlos José Domingos da Lima,Jorge Enoch Furquim Werneck Oliveira-Filho,Eduardo Cyrino |
dc.subject.por.fl_str_mv |
water hardness ecotoxicology water resources calcium bioindicators |
topic |
water hardness ecotoxicology water resources calcium bioindicators |
description |
INTRODUCTION: Brazil's Federal District (FD) has seen steep population growth in recent years, and this has increased demand for high-quality water. AIM: The present work aims to evaluate the quality of surface water from two water bodies in the FD at six sampling points, three of which are in the Sobradinho River (the receiving body of a sewage treatment plant effluent) and three in the Jardim River (located in an agricultural region). METHODS: Analyses were carried out every thirty days, for twelve months, covering rainy and dry seasons. Parameters were analyzed such as temperature, pH, dissolved oxygen (DO), conductivity, turbidity, total hardness, main ions, total and fecal coliforms (E. coli) in water. Ecotoxicological evaluation was also performed, using the micro-crustacean Ceriodaphnia dubia. RESULTS: Data of physical and chemical determinations showed DO, conductivity, Cl-, NO3-, SO4(2-) and Na+ to be important in indicating contamination by urban effluents. On the subject of biological parameters - E. coli and ecotoxicological evaluation - the former was seen to be more effective in the urban area. However, in the countryside, the assay with C. dubia proved to be the most sensitive, although less than ideal, because the organism is very sensitive to low water hardness. CONCLUSIONS: The fecal coliform indicator (E. coli) was the most effective one for comparing water quality in the two basins, mainly for the urbanized one, while ecotoxicity assays with C. dubia were harmed by the natural chemical composition of the water. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S2179-975X2012005000009 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
dc.source.none.fl_str_mv |
Acta Limnologica Brasiliensia v.23 n.3 2011 reponame:Acta Limnologica Brasiliensia (Online) instname:Associação Brasileira de Limnologia (ABL) instacron:ABL |
instname_str |
Associação Brasileira de Limnologia (ABL) |
instacron_str |
ABL |
institution |
ABL |
reponame_str |
Acta Limnologica Brasiliensia (Online) |
collection |
Acta Limnologica Brasiliensia (Online) |
repository.name.fl_str_mv |
Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL) |
repository.mail.fl_str_mv |
||actalb@rc.unesp.br |
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1754212636229107712 |