Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/20.500.12207/730 |
Resumo: | The purpose of this study was to evaluate the potential impact of the pesticides detected in the Alqueva reservoir (Guadiana Basin, South Iberian Peninsula) on the aquatic organisms belonging to this ecosystem. For this purpose, the occurrence and risk assessment of 25 pesticides and of a number of their degradation products were determined in the Alqueva surface waters. The areas (sampling stations) most polluted by pesticides were Sra. Ajuda, Lucefecit and Álamos in the northern and in the middle portions of the reservoir, respectively. The aquatic risk assessment revealed that from the various compounds analysed terbuthylazine, chlorfenvinphos and diazinon presented non-acceptable risk when maximum concentrations were used as the measured environmental concentrations (MEC). The locations that had more samples with risk quotients higher than 1 (high risk) were Sra. Ajuda followed by Lucefécit. The use of risk assessment allowed us to conclude that, despite that the pesticides' concentrations in the water column fulfil the European environmental quality standards, a number of the compounds show a high ecotoxicological risk for the aquatic organisms in the Alqueva ecosystem. The results thereby demonstrate that to have an efficient risk management process, the regulatory authorities of each country must consider an integrative chemical and ecotoxicological approach. |
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Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal)PesticidesRisk assessmentEnvironmental quality standardsSurface waterAlqueva reservoir (Guadiana River Basin)The purpose of this study was to evaluate the potential impact of the pesticides detected in the Alqueva reservoir (Guadiana Basin, South Iberian Peninsula) on the aquatic organisms belonging to this ecosystem. For this purpose, the occurrence and risk assessment of 25 pesticides and of a number of their degradation products were determined in the Alqueva surface waters. The areas (sampling stations) most polluted by pesticides were Sra. Ajuda, Lucefecit and Álamos in the northern and in the middle portions of the reservoir, respectively. The aquatic risk assessment revealed that from the various compounds analysed terbuthylazine, chlorfenvinphos and diazinon presented non-acceptable risk when maximum concentrations were used as the measured environmental concentrations (MEC). The locations that had more samples with risk quotients higher than 1 (high risk) were Sra. Ajuda followed by Lucefécit. The use of risk assessment allowed us to conclude that, despite that the pesticides' concentrations in the water column fulfil the European environmental quality standards, a number of the compounds show a high ecotoxicological risk for the aquatic organisms in the Alqueva ecosystem. The results thereby demonstrate that to have an efficient risk management process, the regulatory authorities of each country must consider an integrative chemical and ecotoxicological approach.Elsevier2014-05-14T11:34:15Z2014-05-01T00:00:00Z2014-08-01T00:00:00Z2014-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12207/730engmetadata only accessinfo:eu-repo/semantics/openAccessPalma, P.Köck-Schulmeyer, M.Alvarenga, P.Ledo, L.Barbosa, I. R.López de Alda, M.Barceló, D.reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T07:46:40Zoai:repositorio.ipbeja.pt:20.500.12207/730Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:58:27.325134Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
title |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
spellingShingle |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) Palma, P. Pesticides Risk assessment Environmental quality standards Surface water Alqueva reservoir (Guadiana River Basin) |
title_short |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
title_full |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
title_fullStr |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
title_full_unstemmed |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
title_sort |
Risk assessment of pesticides detected in surface water of the Alqueva reservoir (Guadiana basin, southern of Portugal) |
author |
Palma, P. |
author_facet |
Palma, P. Köck-Schulmeyer, M. Alvarenga, P. Ledo, L. Barbosa, I. R. López de Alda, M. Barceló, D. |
author_role |
author |
author2 |
Köck-Schulmeyer, M. Alvarenga, P. Ledo, L. Barbosa, I. R. López de Alda, M. Barceló, D. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Palma, P. Köck-Schulmeyer, M. Alvarenga, P. Ledo, L. Barbosa, I. R. López de Alda, M. Barceló, D. |
dc.subject.por.fl_str_mv |
Pesticides Risk assessment Environmental quality standards Surface water Alqueva reservoir (Guadiana River Basin) |
topic |
Pesticides Risk assessment Environmental quality standards Surface water Alqueva reservoir (Guadiana River Basin) |
description |
The purpose of this study was to evaluate the potential impact of the pesticides detected in the Alqueva reservoir (Guadiana Basin, South Iberian Peninsula) on the aquatic organisms belonging to this ecosystem. For this purpose, the occurrence and risk assessment of 25 pesticides and of a number of their degradation products were determined in the Alqueva surface waters. The areas (sampling stations) most polluted by pesticides were Sra. Ajuda, Lucefecit and Álamos in the northern and in the middle portions of the reservoir, respectively. The aquatic risk assessment revealed that from the various compounds analysed terbuthylazine, chlorfenvinphos and diazinon presented non-acceptable risk when maximum concentrations were used as the measured environmental concentrations (MEC). The locations that had more samples with risk quotients higher than 1 (high risk) were Sra. Ajuda followed by Lucefécit. The use of risk assessment allowed us to conclude that, despite that the pesticides' concentrations in the water column fulfil the European environmental quality standards, a number of the compounds show a high ecotoxicological risk for the aquatic organisms in the Alqueva ecosystem. The results thereby demonstrate that to have an efficient risk management process, the regulatory authorities of each country must consider an integrative chemical and ecotoxicological approach. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-14T11:34:15Z 2014-05-01T00:00:00Z 2014-08-01T00:00:00Z 2014-08-01T00:00:00Z |
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://hdl.handle.net/20.500.12207/730 |
url |
http://hdl.handle.net/20.500.12207/730 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799129858016542720 |