Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil)
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.panamjas.org/pdf_artigos/PANAMJAS_3(2)_108-115.pdf http://hdl.handle.net/11449/70514 |
Resumo: | The objective of this study was to evaluate the toxicity of water which flows toward the beaches of Santos, SP, Brazil. Water samples were collected from eight urban drainage channels and a small creek, in March, April and August 2005. For each sample, some physical-chemical parameters were analyzed: pH, dissolved oxygen, temperature, salinity, presence of free chlorine and total ammonia contents. Acute toxicity tests (48h) with Daphnia similis were also performed with the samples. The level of ammonia was relatively high in the majority of the samples (≥ 1.5 mg/L), and free chlorine was measurable in most of them. Acute toxicity was observed in four water samples (stations 3, 4, 5 and 7), at least in one occasion. The toxicity was positively correlated with the ammonia concentrations and salinity. Because acute toxicity was detected, actions aiming to control the pollution sources and improve the water quality are recommended. |
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Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil)Daphnia similisEcotoxicologyToxicity testsWater pollutionWater qualityDaphniaThe objective of this study was to evaluate the toxicity of water which flows toward the beaches of Santos, SP, Brazil. Water samples were collected from eight urban drainage channels and a small creek, in March, April and August 2005. For each sample, some physical-chemical parameters were analyzed: pH, dissolved oxygen, temperature, salinity, presence of free chlorine and total ammonia contents. Acute toxicity tests (48h) with Daphnia similis were also performed with the samples. The level of ammonia was relatively high in the majority of the samples (≥ 1.5 mg/L), and free chlorine was measurable in most of them. Acute toxicity was observed in four water samples (stations 3, 4, 5 and 7), at least in one occasion. The toxicity was positively correlated with the ammonia concentrations and salinity. Because acute toxicity was detected, actions aiming to control the pollution sources and improve the water quality are recommended.UNESP Universidade Estadual Paulista Júlio de Mesquita Filho Unidade São Vicente, Pça Infante D. Henrique, s/n, Parque Bitaru CEP 11330-900 São Vicente - SPUSP PROCAM Cidade Universitária, Rua do Anfiteatro, 181, Colmeia, Favo 15, CEP 05508-900, Sao Paulo - SPUNESP Universidade Estadual Paulista Júlio de Mesquita Filho Unidade São Vicente, Pça Infante D. Henrique, s/n, Parque Bitaru CEP 11330-900 São Vicente - SPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Ambrozevicius, Andréa Pimenta [UNESP]Abessa, Denis Moledo de Souza [UNESP]2014-05-27T11:23:37Z2014-05-27T11:23:37Z2008-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article108-115application/pdfhttp://www.panamjas.org/pdf_artigos/PANAMJAS_3(2)_108-115.pdfPan-American Journal of Aquatic Sciences, v. 3, n. 2, p. 108-115, 2008.1809-9009http://hdl.handle.net/11449/705142-s2.0-482490919822-s2.0-48249091982.pdf2842419319556542Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPan-American Journal of Aquatic Sciences0,176info:eu-repo/semantics/openAccess2023-11-18T06:10:01Zoai:repositorio.unesp.br:11449/70514Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:00:20.782183Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
title |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
spellingShingle |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) Ambrozevicius, Andréa Pimenta [UNESP] Daphnia similis Ecotoxicology Toxicity tests Water pollution Water quality Daphnia |
title_short |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
title_full |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
title_fullStr |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
title_full_unstemmed |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
title_sort |
Acute toxicity of waters from the urban drainage channels of Santos (São Paulo, Brazil) |
author |
Ambrozevicius, Andréa Pimenta [UNESP] |
author_facet |
Ambrozevicius, Andréa Pimenta [UNESP] Abessa, Denis Moledo de Souza [UNESP] |
author_role |
author |
author2 |
Abessa, Denis Moledo de Souza [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Ambrozevicius, Andréa Pimenta [UNESP] Abessa, Denis Moledo de Souza [UNESP] |
dc.subject.por.fl_str_mv |
Daphnia similis Ecotoxicology Toxicity tests Water pollution Water quality Daphnia |
topic |
Daphnia similis Ecotoxicology Toxicity tests Water pollution Water quality Daphnia |
description |
The objective of this study was to evaluate the toxicity of water which flows toward the beaches of Santos, SP, Brazil. Water samples were collected from eight urban drainage channels and a small creek, in March, April and August 2005. For each sample, some physical-chemical parameters were analyzed: pH, dissolved oxygen, temperature, salinity, presence of free chlorine and total ammonia contents. Acute toxicity tests (48h) with Daphnia similis were also performed with the samples. The level of ammonia was relatively high in the majority of the samples (≥ 1.5 mg/L), and free chlorine was measurable in most of them. Acute toxicity was observed in four water samples (stations 3, 4, 5 and 7), at least in one occasion. The toxicity was positively correlated with the ammonia concentrations and salinity. Because acute toxicity was detected, actions aiming to control the pollution sources and improve the water quality are recommended. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-08-01 2014-05-27T11:23:37Z 2014-05-27T11:23:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.panamjas.org/pdf_artigos/PANAMJAS_3(2)_108-115.pdf Pan-American Journal of Aquatic Sciences, v. 3, n. 2, p. 108-115, 2008. 1809-9009 http://hdl.handle.net/11449/70514 2-s2.0-48249091982 2-s2.0-48249091982.pdf 2842419319556542 |
url |
http://www.panamjas.org/pdf_artigos/PANAMJAS_3(2)_108-115.pdf http://hdl.handle.net/11449/70514 |
identifier_str_mv |
Pan-American Journal of Aquatic Sciences, v. 3, n. 2, p. 108-115, 2008. 1809-9009 2-s2.0-48249091982 2-s2.0-48249091982.pdf 2842419319556542 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pan-American Journal of Aquatic Sciences 0,176 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
108-115 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128884156137472 |